PLEASE NOTE: These regulations are provided for information only. Official versions of the Sherborn Board of Health Regulations are maintained by the Sherborn Board of Health. Copies are available at the Sherborn Town Office.
REGULATIONS
of the
BOARD OF HEALTH
Sherborn, Massachusetts 01770
March 2000
TABLE OF CONTENTS
I SEWAGE DISPOSAL ............................................... 1
Introduction ................................................ 1
1.0 General Regulations ..................................... 1
1.1 Required Permits .................................... 1
1.2 Builder Responsibility .............................. 1
1.3 Approved Plan ....................................... 1
1.4 Water Discharge and Drainage ........................ 1
1.5 Interceptor Drains .................................. 2
2.0 Agent ................................................... 2
3.0 Permits and Plans ....................................... 2
3.1 Disposal Works Permits .............................. 2
3.2 Pre-construction Requirements ....................... 2
3.3 Permit Expiration ................................... 3
3.4 Plans ............................................... 3
3.4.1 Plan Requirements ............................. 3
3.4.2 Design Requirements ........................... 3
3.4.3 As-Built Plans ................................ 4
3.4.4 Plan Changes .................................. 4
3.5 Alterations and Abandonment ......................... 4
3.6 Certificate of Compliance ........................... 4
3.7 Permit Fees ......................................... 5
3.8 Suitability ......................................... 5
3.9 Permit Conditions ................................... 5
4.0 Application Procedures .................................. 5
5.0 Siting of Systems ....................................... 5
5.1 Testing Requirements .................................... 5
5.2 Percolation Rate ........................................ 7
5.3 Watercourses and Wetlands ............................... 7
6.0 Reserved ................................................ 7
7.0 System Size and Design .................................. 7
7.1 Leaching Area Size .................................. 8
7.2 Septic Tanks ........................................ 9
7.2.1 Residential ................................... 9
7.2.2 Other ......................................... 9
7.2.3 Septic Tank Design ........................... 10
7.2.4 Pump Chambers ................................ 10
7.3 Pressure Dosing Systems ............................ 10
8.0 Vertical Grades and Clearances ......................... 10
9.0 Backfill ............................................... 10
10.0 Distance Requirements ................................. 11
10.1 Well Distance ..................................... 11
10.2 Minimum Distances ................................. 11
10.3 Other Distances ................................... 11
11.0 Inspections ........................................... 11
A Agent Inspections .................................... 11
B Inspection Limitations ............................... 11
C Number of Inspections ................................ 1l
D Inspection Requirements .............................. 12
12.0 Location Record ....................................... 12
13.0 Manholes and Cleanouts ................................ 12
14.0 Reserved .............................................. 12
15.0 Construction in Fill .................................. 12
16.0 Fill Restrictions ..................................... 14
17.0 Purchase Warning ...................................... 14
18.0 Privies and Chemical Toilets .......................... 14
19.0 Reserved .............................................. 14
20.0 Maintenance ........................................... 14
21.0 Innovative and Alternative Technologies ............... 15
22.0 Variance Procedures ................................... 15
23.0 Violations ............................................ 15
II DOMESTIC WATER SUPPLY ....................................... 16
1.0 Permits ................................................ 16
1.1 Introduction ....................................... 16
1.2 Permit Requirements ................................ 16
1.3 Permit Application ................................. 16
1.4 Permit Release Requirements ........................ 16
1.5 Well Pump and Storage Tank Permits ................. 16
2.0 Definitions ............................................ 16
3.0 Sanitary Performance ................................... 17
4.0 Well Drillers .......................................... 17
5.0 Well Protection ........................................ 17
6.0 Well Location .......................................... 17
7.0 Number of Wells ........................................ 18
g.0 Pump Houses ............................................ 18
9.0 Pump House Protection .................................. 18
10.0 Approvals ............................................. 18
11.0 Well Specifications ................................... 18
11.1 Well Yield ........................................ 18
11.2 Storage ........................................... 18
12.0 Tests ................................................. 18
13.0 Auxiliary Power ....................................... 19
14.0 Grade Termination ..................................... 19
15.0 Reserved .............................................. 19
16.0 Pipes and Equipment ................................... 19
17.0 Water Quality and Quantity Specifications ............. 20
17.l Sanitary Protection ............................... 20
17.2 Sampling/Quality .................................. 20
17.3 Laboratory Tests .................................. 20
17.4 Water Conditioning ................................ 21
17.5 Prohibitions ...................................... 21
17.6 Other Use Prohibitions ............................ 21
18.0 Enforcement ........................................... 22
19.0 Variance Procedures ................................... 22
III PUBLIC AND ENVIRONMENTAL HEALTH REVIEW
REGULATIONS AND STANDARDS FOR OTHER THAN A SINGLE
FAMILY DWELLING ON A SINGLE LOT ................................ 23
1.0 Authority .............................................. 23
2.0 Purpose ................................................ 23
3.0 Jurisdiction ........................................... 23
3.1 Environmental Health Impact Report ................. 23
3.2 Environmental Health Permit ........................ 23
3.3 All Other Projects ................................. 24
4.0 Burden of Proof ........................................ 24
5.0 Definitions ............................................ 24
6.0 Applications for Permits ............................... 24
6.1 General ............................................ 24
6.2 Other Applications ................................. 24
6.3 Fees ............................................... 24
7.0 Water Supply ........................................... 25
8.0 Sewage Disposal ........................................ 25
9.0 Special Industrial and Commercial Requirements ......... 25
10.0 Reserved .............................................. 26
11.0 Reserved .............................................. 26
12.0 Drainage .............................................. 27
13.0 Earth Removal Standards ............................... 28
13.1 Submittal Requirements ............................ 28
13.2 Standards ......................................... 29
14.0 Environmental Health Impact Report -
Scope and General Submittal Requirements ............... 30
15.0 Other Permits ......................................... 31
16.0 Findings Required ..................................... 31
IV DESIGN, OPERATION AND MAINTENANCE of
SMALL WASTEWATER TREATMENT FACILITIES .......................... 32
1.0 Permit Requirements .................................... 32
1.1 Disposal Works Construction Permit ................. 32
1.2 Certificate of Compliance and Operations Permit..... 32
1.3 Service Area and Limitations ....................... 32
2.0 Submittals ............................................. 32
2.1 Applications, Reports, Plans, Data, Documents ...... 33
3.0 Other Regulations and Guidelines ....................... 33
3.1 Federal, State and Local Regulations ............... 33
3.2 Standards for Design, Operations and Maintenance ... 33
4.0 General Project Planning Requirements .................. 34
4.1 Environmental Compatibility ........................ 34
4.2 General Discharge and Treatment Requirements ....... 34
4.3 Hydrogeological Investigation ...................... 35
4.4 Wetlands and Flood Plains .......................... 35
4.5 General Siting and Design Requirements ............. 35
4.5.1 Distances .................................... 35
4.6 Ultimate Disposal of Sludge and Solids ............. 36
4.7 Treatment Plant Reliability ........................ 36
4.8 By-passes and Overflows ............................ 36
4.9 Disinfection ....................................... 36
5.0 Subsurface Disposal Facilities ......................... 36
5.1 Ground Water ....................................... 36
5.2 Distance to Bedrock ................................ 36
5.3 Thickness of Permeable Soil ........................ 37
6.0 Sewers ................................................. 37
7.0 Ground Water Monitoring ................................ 37
7.1 Installation ........... ........................... 37
7.2 Ground Water Elevation ............................. 37
8.0 Effluent Limits and Testing Requirements ............... 38
8.1 Wastewater ......................................... 38
8.1.1 Treatment Plant Influent ..................... 38
8.1.2 Treatment Plant Effluent ..................... 38
8.2 Ground Water Monitor Wells ......................... 39
9.0 Operation .............................................. 39
9.1 Operator ........................................... 39
9.2 Back-up Operator ................................... 39
9.3 Operational Guarantee .............................. 39
V WATER TESTING REQUIREMENTS FOR FOOD ESTABLISHMENT PERMITS .......................................... 40
VI TOBACCO CONTROL REGULATIONS ................................. 41
1.0 Purpose and Authority .................................. 41
1.1 Youth at Risk ...................................... 41
1.2 Environmental Tobacco Smoke (ETS) .................. 41
2.0 Definitions ............................................ 41
3.0 Prohibition of Tobacco Sales to Minors ................. 44
3.l Sales to Minors .................................... 44
3.2 Posting State Law .................................. 44
3.3 Tobacco Sales Permit ............................... 44
3.4 Identification Requirements ........................ 45
3.5 Self-Service Displays/Vending Machines ............. 45
3.6 Individual Cigarette Sales ......................... 45
3.7 Free Distribution/Sampling ......................... 45
3.8 Inspections/Enforcement ............................ 45
3.9 Suspension of Permit ............................... 45
3.10 Violations ........................................ 46
4.0 Prohibition of Smoking in Public Places ................ 46
4.1 Violations ......................................... 46
5.0 Prohibition of Smoking in Restaurants .................. 46
5.1 Designated Smoking Areas ........................... 47
5.2 Violations ......................................... 47
6.0 Prohibition of Smoking in Function Rooms ............... 47
7.0 Severability ........................................... 47
VII RESERVED ................................................... 48
VIII SEVERABILITY .............................................. 48
IX ENFORCEMENT ................................................. 48
X APPEAL PROCEDURES ............................................ 48
APPENDIX A -- BOARD OF HEALTH GUIDELINES TO OBTAIN A BUILDING PERMIT ................................................ 49
APPENDIX B -- FEES FOR THE EMPLOYMENT OF OUTSIDE CONSULTANTS .................................................... 51
Town of Sherborn - Board of Health Regulations
INTRODUCTION
These Regulations are adopted in accordance with Title 1, Regulation 2 of the
State Environmental Code and Article 1 of the State Sanitary Code and are
intended to supplement the State Codes. The State Codes have the force of State
Law and establish minimum requirements. Where a local regulation is more strict,
the local regulation shall prevail. The provisions of these regulations are
based on General Law and the particular physical, environmental, hydrogeological,
demographic and land use information and projections relative to the Town of
Sherborn. No system or facility to be used for treating, neutralizing,
stabilizing or disposing of wastewater from homes, public buildings, commercial
or industrial buildings or any other types of establishments shall be located,
constructed, altered, repaired or installed until a Disposal Works Construction
Permit for such work shall have been issued by the Board of Health.
1.0 GENERAL REGULATIONS
1.1 REQUIRED PERMITS
Construction under a Building Permit or Foundation Permit shall not proceed
until the Board of Health Permits for water supply and subsurface sewage
disposal have been issued. No Building Permit or other Permit has precedence
over a Board of Health Permit in this instance. All installers of sewage
disposal systems shall have the required Board of Health Permits and a copy of
the signed and approved plan shall be in their possession on the site while
installing the system, to be available for the Board of Health or their
designated Agent at the time of inspection.
No structure, for which a Disposal Works Construction Permit or a well permit from the Board of Health is required, shall be constructed or placed on any property within the town until such Board of Health permits shall have been issued.
1.2 BU1LDER RESPONSIBILITY
Issuance of a Board of Health Permit does not relieve the
builder of his responsibility to conform to the Sherborn Regulations for
Domestic Water Supply and Sewage Disposal. The construction of cesspools or
leaching beds is prohibited. An abandoned well shall not be used for any part of
a subsurface sewage disposal system. The Board of Health strongly recommends
against the installation of domestic garbage grinders.
1.3 APPROVED PLAN
No permit shall be issued until an approved plan has been signed
by no less than two (2) members of the Board of Health, following a vote at a
regular meeting.
1.4 WATER DISCHARGE AND DRAINAGE
Water discharge and drainage must comply with Title
5 of the State Environmental Code. No cooling water, ground water, discharge of
roof drains, cellar drains or other liquids shall be discharged into the
sanitary subsurface sewage disposal system. Any dry well for such purpose shall
be located not less than 25 feet from any portion of any leaching area.
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Town of Sherborn - Board of Health Regulations
1.5 INTERCEPTOR DRAINS
Lowering the water table through the use of interceptor or curtain drains to
permit marginal or unacceptable conditions to be improved to meet minimum
requirements for the installation of subsurface sewage disposal systems is
prohibited by the Board of Health. The Board of Health reserves the right to
approve the installation of an interceptor drain for rehabilitation of an
existing, failed system provided the following conditions are met to the Board's
satisfaction:
2.0 AGENT
An Agent of the Board of Health is any person authorized by the Board to act
under these regulations. No action required by these regulations shall be taken
by the Agent without the approval of the Board of Health. The Agent may not vary
these regulations without specific approval. Wherever reference is made to the
Board of Health, it shall mean the Board of Health or it's Agent.
3.0 PERMITS AND PLANS
3.1 DISPOSAL WORKS PERMITS
A Disposal Works Construction Permit shall be required prior to the start of any
construction from which waste waters will be generated. Such construction shall
be performed only by persons or firms holding a current Disposal Works
Installers Permit from the Board of Health.
3.2 PRE-CONSTRUCTION REQUIREMENTS
Subsurface sewage disposal systems shall not be constructed until all major
plumbing has been installed in a dwelling or structure generating sanitary
wastes.
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Town of Sherborn - Board of Health Regulations
3.3 PERMIT EXPIRATION
All Disposal Works Construction Permits and Well Permits shall expire two (2)
years from the date of issue. After a permit has expired, the applicant shall
submit a new application, a complete set of plans as required by this
regulation, and shall pay a fee as may be set from time to time by the Board of
Health. The permit application and plans shall show the applicant's name and
shall comply with all regulations in force at the time of the renewal. Renewals
shall not be accepted for a date prior to the expiration date of two (2) years
from the date of issuance. New maximum water table elevations and soil testing
shall be required, when, in the opinion of the Board of Health, the site
conditions have undergone such modifications that make such re-testing
necessary, or when new data has indicated that such initial testing may not
appropriately describe the true conditions.
3.4.0 PLANS
3.4.1 PLAN REQUIREMENTS - The following shall be placed on the plan:
A. A drawing to scale (1"=10'; 1"=20'; 1 "=30', as the situation may warrant) indicating dimensions of the building and building lot showing placement of the proposed building, individual subsurface sewage disposal system and. additional area for 100% expansion of the disposal area (as defined in Section 10.2 of these regulations), driveway, well site and water service.
B. The location of all drains, natural features such as ledge or rock outcropping, distance to existing wells and sewage disposal systems on adjacent lots and any other type of construction which may be pertinent for placement and design of a proper disposal system.
C. The location of any watercourses, including streams, brooks, ponds, swamps, marsh or other wetlands.
D. The precise locations of all manholes, catch basins, clean-out drain plugs, drains or known sources of water supply within 200 feet of the proposed sewage disposal system.
E. Two benchmarks and datum plane notation. One of the benchmarks shall be within fifty (50) feet of the proposed leaching area.
F. A locus map including the distance to the nearest intersecting street.
G. The results of the soil logs, soil classification and maximum water table elevations encountered for all test holes and the name of the individual who witnessed the tests for the Board of Health.
3.4.2 DESIGN REQUIREMENTS - The design of the proposed individual subsurface sewage disposal system shall be shown in detail, with benchmarks and datum plane notes including the following:
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Town of Sherborn - Board of Health Regulations
A. Elevation of existing and proposed contours at two (2) foot intervals, bottom of leach lines or pits, ledge, hardpan, till or any watercourses. Streams, ponds, swamps, marsh or other wetlands (as defined in Chapter 131, Section 40 of the Massachusetts General Laws), or any surface or subsurface drains shall also be included.
B. Invert elevation of the house sewer, inlet and outlet pipes of septic tank, inlet and outlet pipes of distribution box, elevation of the trench bottoms (base of stone), beginning and end of pipes in the trenches and proposed elevations of the system in the expansion area.
3.4.3 AS BUILT PLANS
A. AS BUILT PLANS shall be required showing the exact location of the on-site subsurface sewage disposal system and well after each system has been installed. These shall be submitted on a new plot plan signed by a registered sanitarian, civil or sanitary engineer. There shall be included a certification by said sanitarian or engineer that the system, including final grading, has been constructed in accordance with the approved plan and the terms of the permit. This plan shall be submitted before the final inspection is made by the Board of Health and before a Certificate of Compliance is issued. This AS BUILT PLAN shall remain on file at the Board of Health office.
B. A computerized copy of all AS BUILT plans (or, if AS BU1LT plans are not computerized, final approved septic plans) shall be submitted when such plans are produced on computerized systems. Copies to be submitted shall be in a commonly accepted format able to be "read" by the Town of Sherborn GIS system.
3.4.4 PLAN CHANGES - A new application and fee shall be required when in the opinion of the Board of Health:
- a plan is substantially changed or
- an additional soil test(s) must be conducted.
3.5 ALTERATIONS AND ABANDONMENT
Alterations and abandonment of wells, septic tanks, seepage pits, leaching
trenches or other means of subsurface sewage disposal shall not be performed,
constructed or installed until a permit has first been obtained from the Board
of Health. If a system or any part of a system is to be abandoned, all tanks,
manholes, boxes over six inches deep inside, or any system component whose
collapse could create a danger, shall be pumped out (with proper disposal of the
contents), the top of the structure crushed, and the structure filled with clean
compacted naturally occurring earth or soil free of any vegetation such as
branches and tree stumps, etc. (construction debris is not acceptable).
3.6 CERTIFICATE OF COMPLIANCE
The owner or other person or persons having control of any existing building or
buildings shall not add to or alter to increase bedroom space as defined in
Section 7.0 of these regulations without prior approval of the Board of Health.
Construction shall not commence until a permit
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Town of Sherborn - Board of Health Regulations
for alteration or approval of the adequacy of the sewage disposal system has been obtained from the Board of Health. Occupancy of any such construction shall not take place until a Certificate of Compliance has been issued by the Board of Health.
3.7 PERMIT FEES
A fee for the issuance of permits shall be charged and the rate shall be
established by the Board of Health from time to time.
3.8 SUITABILITY
Foundation, building or plumbing permits for a dwelling or other structure shall
not be issued until the Board of Health has approved the proposed lot as
suitable for subsurface sewage disposal.
3.9 PERMIT CONDITIONS
All permits issued shall be subject to the conditions that all facilities shown
shall be constructed in the location approved by the Board of Health. All
permits issued shall be subject to the requirements of these regulations, and to
such further conditions as the Board of Health shall prescribe.
4.0 APPLICATION PROCEDURES
A. SOIL TEST1NG
A completed application shall consists of the application form, the required fee, and a drawn-to-scale locus plan, no smaller than drawn on a scale of 50 feet to an inch, showing the proposed lot, the proposed location of the test holes and shall indicate generally the location of any water supplies, disposal systems or wetlands within 200 feet of the lot being tested as well as the distance to the nearest intersecting street. If there are no water supplies, disposal systems or wetlands within that distance, it shall be so stated on the plan.B. PLAN SUBMITTAL
The application for a well and for a subsurface sewage disposal permit shall be filed in duplicate. They shall be on such form and in such detail, as the Board of Health shall prescribe, and shall be submitted with the required fee(s). The application and plan shall conform to the State Codes and the Sherborn Board of Health regulations. Before a permit can be issued, the applicant shall submit five (5) copies of such plans prepared by a qualified registered sanitarian, civil or sanitary engineer with street and assessors map number clearly indicated.
5.0 SITING OF SYSTEMS
5.1 TESTING REQUIREMENTS
A. Percolation tests shall be conducted after November 1st and completed before June 30th. Percolation test results shall not be accepted nor shall tests be observed at other times of the year except for the repair of overflowing or "backing up" septic systems, or when the existing system is a cesspool, or when the interests of public health are of priority as determined by the Board of Health. When soil testing is permitted at other than the
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Town of Sherborn - Board of Health Regulations
times noted in the regulations, maximum groundwater determination shall be by the soils investigation technique approved by the State Title 5.
B. All Soil testing to determine maximum ground water elevation for septic system design and permits for a given year shall be conducted after November 1st and completed before April 29th, unless that date is extended by a vote of the Board of Health. If soil morphology is inconclusive for determining maximum high groundwater, testing engineers shall place monitor wells in the deep test pits. Ground water levels shall be measured by the engineer in such monitor wells between the 22nd and 29th of each allowed testing month for groundwater as may be applicable. All water levels measured are subject to a seasonal groundwater adjustment as determined by the Board of Health using the method as described in "U.S. Geological Survey, Water Resources Investigations, Open File Report 80-1205--Probable High Groundwater Levels in Massachusetts". Other adjustment values may be allowed by the Board on a case by case basis if supported by a preponderance of technical evidence to support such proposal by the design engineer. Applications for such testing during the ground water season shall be submitted prior to April 1st. Testing shall not be performed for applications received after that date.
C. There shall be a minimum of three (3) deep test pits evenly distributed within the limits of the proposed leaching area and integrated expansion area, plus any others that might be designated by the Board of Health Agent, either at the time of testing or during the plan review period. If ledge is encountered or indicated, a total of five (5) test holes shall be dug, one at each comer of the proposed leaching area and one in the center. An additional test pit shall be dug at the location of a proposed new structure. Deep test pits shall be dug to a minimum depth of five (5) feet below the bottom of the proposed leaching area, and in no event less than ten (10) feet deep. The results of the deep tests shall be shown in a graphical "log" format, showing soil strata with elevation, elevation of the ground surface, elevation of the bottom of the hole, elevation of any ledge or refusal encountered, the elevation of ground water if encountered, or indicate "none encountered" when applicable, the date of the test and the name of the Board of Health representative who observed such test. Deep test pit results shall not be accepted or observed by the Board of Health at other times of the year from that designated above, except for the repair of overflowing or "backing up" septic systems when the interests of the public health are of priority as determined by the Board of Health.
D. A minimum of two (2) stabilized percolation tests shall be performed at an elevation which is representative of the soil extending for a depth of five (5) feet below the leaching field and along its side walls. Additional tests shall be required, either at the time of testing or during the plan review period, when, in the opinion of the Board of Health or its Agent, the percolation rate is not consistent or similar between the two tests, when large disposal areas are required or where the soil structure varies. Percolation tests shall be conducted after November 1st and completed before June 30th. Percolation test results shall not be accepted nor shall tests be observed at other times of the year except for the repair of overflowing or "backing up" septic systems when the interests of the public health are of priority as determined by the Board of Health. Percolation tests shall be conducted
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Town of Sherborn - Board of Health Regulations
in accordance with Title 5 of the State Environmental Code with the following modifications:
1. Percolation rates shall be expressed to the nearest integer minute per inch.
2. The overnight soak procedure as described in Title 5 shall be required in all cases where the percolation rate is slower than nine ( 9 ) minutes per inch.
3. The results of the percolation tests shall be tabulated on an inch by inch basis and that data shall be inscribed on the design plan. If the rate of water drop is not uniform, in the opinion of the Board of Health or its Agent, the test shall be repeated until such uniform rate is achieved.
4. The sewage application rates as designed in Title 5 shall not be interpolated. Measured values shall be rounded up to the next percolation rate value as stated in Title 5. All tests shall be observed by an authorized representative of the Board of Health. A minimum of ten (10) days notice shall be required to schedule the Board of Health Agent to witness any tests. A test date shall then be established according to the Board of Health Agent's schedule. All tests shall be performed in natural soil that has not been disturbed or altered by previous filling, excavation, blasting or other means. All test pits shall be adequately protected by the applicant to prevent accidents to both humans and animals. The pits shall not be filled in until they have been inspected by the Board of Health Agent. After the tests are completed and all data has been recorded, the test holes shall be filled. Test holes shall not be left open overnight.
5.2 PERCOLATION RATE
The maximum allowable percolation rate shall be 20
minutes per inch in order for soil to be considered suitable for the subsurface
disposal of sewage. A rate exceeding 20 minutes per inch shall not be accepted.
5.3 WATERCOURSES AND WETLANDS - No portion of any septic system, including fill material, shall be constructed within the boundary of any watercourse or wetland.
6.0 RESERVED
7.0 SYSTEM SIZE AND DESIGN
A. All septic systems shall consist of a septic tank, a distribution box and a leaching area along with an expansion Leaching area. There shall be a minimum of one hundred (100) lineal feet of pipe, plus such additional length as indicated by the percolation tests. There shall be a minimum of four hundred (400) square feet of leaching area, plus such additional area as indicated by the percolation tests.
B. The pipes installed in the trenches shall be of four (4) inch diameter and of a material approved by the Sherborn Board of Health. Pipe from the septic tank to the distribution box shall be rigid PVC pipe, schedule 40. The depth of a leaching trench shall be a minimum of twelve (12) inches and a maximum of twenty four (24) inches below the invert of the distribution piping. The maximum width of a leaching trench shall be three (3) feet.
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Town of Sherborn - Board of Health Regulations
C. The distribution piping in leaching trenches shall be laid in a layer of washed crushed or washed gravel stone 1-1/4 to 1-3/4 inches in size, free from fines, iron or dust. The pipe shall be covered with four (4) inches of the same size stone. Upon this layer shall be placed at least a two (2) inch layer of washed crushed stone or washed gravel stone ranging from 1/8 to 1/2 inches in size, free from fines, iron or dust.
D. Clear spacing between leaching trenches shall be a minimum of six (6) feet (minimum distance between walls of adjacent trenches). The difference in elevation of successive adjacent leaching trenches shall be a maximum of twelve (12) inches.
E. RESERVED
F. No leaching trench or line shall be greater than one hundred (100) feet in length. The surface above the leaching area shall remain permeable and shall have no construction upon it.
G. The area over the leaching area shall not be made impermeable.
7.1 LEACHING AREA SIZE
A. The maximum daily flow for a household for design purposes shall be based on water use of 55 gallons per capita per day. The number of people housed shall be based on two persons per bedroom. A bedroom is any room other than a kitchen, dining room, living room, bathroom, den, playroom, family room, and/or library on the first floor. Any room larger than 450 square feet shall be considered two rooms. Any room above the first floor shall be considered to be a bedroom. In all cases the number of bedrooms shall not be less than on half (1/2) the total number of rooms in the house rounded down (if necessary) to the closest whole number. To be counted as a room, the space must be habitable per the Massachusetts housing code. All single family dwellings shall be designed for a minimum of three (3) bedrooms. All residential system leaching areas shall be designed with sufficient capacity to meet the requirements for the use of garbage grinders, that is, 150 percent of the maximum daily flow.
B. The minimum leaching area to be installed shall be determined from the following table. The slowest percolation measured in the natural soil in the leaching field area shall govern the leaching area requirements.
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Town of Sherborn - Board of Health Regulations
Percolation Rate
(minutes per inch)
Title 5 soil classesLess than or equal to 5
6
7
8
9
10
15
20
Greater than 20Side wall &
bottom area
(gpd/square foot)
Class I soils.74
.70
.68
.66
--
--
--
--
Not PermittedSide wall &
bottom area
(gpd/square foot)
Class II soils.60
.60
.60
.60
.60
.60
.56
.53
Not PermittedSide wall &
bottom area
(gpd/square foot)
Class III soils--
--
--
--
--
--
.37
.34
Not PermittedThe minimum size leaching trench shall be 100 lineal feet of trench.
C. Additional leaching area for leaching trenches or seepage pits shall be as required by the Board of Health
7.2 SEPTIC TANKS
7.2.1 RESIDENTIAL
Single Family Dwellings - The effective liquid capacity
shall be 200% of the design flow or a minimum hydraulic detention flow of 48
hours, whichever is greater. Minimum effective liquid capacity of the tank as
measured below the outlet invert elevation shall not be less than 1500 gallons.
7.2.2 OTHER
When designed to serve facilities other than a single family
dwelling unit, and whenever the calculated design capacity is greater than 1000
gallons per day, a two compartment tank or two tanks in series which meet(s) the
design criteria of the State Environmental Code section 310 CMR 15.203 (are)is
required. The minimum effective liquid capacity of each tank in series shall be
200% of the design flow. In no case shall the effective liquid capacity of each
tank be less than 1500 gallons.
Restaurants:
The septic tank capacity shall be 300% of the estimated maximum daily flow as
estimated from the State Environmental Code or from actual water meter readings
using a peak flow factor, whichever is larger. The peak flow factor shall be 2.0
times the average annual daily flow of days in use, unless data is otherwise
available.
Schools:
The septic tank capacity shall be 200% of the estimated maximum daily flow as
estimated from the State Environmental Code or from actual water meter readings
using a peak flow factor, whichever is larger. The peak flow factor shall be 2.0
times the average annual daily flow of days in use, unless data is otherwise
available.
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Town of Sherborn - Board of Health Regulations
7.2.3 SEPTIC TANK DESIGN shall conform to all Title 5 requirements in effect as of April 1, 1996, shall be a two-compartment tank, and in addition, all residential septic system tanks shall be designed as if a garbage grinder were installed.
7.2.4 PUMP CHAMBERS - Whenever and wherever a system requires the pumping of liquid material to a leaching facility, the use of dual alternating pumps will be required. There shall be an alarm upon the failure of either pump.
7.3 PRESSURE DOSING SYSTEMS - Pressure dosing systems for distribution of septic tank effluent may be permitted if the pressure dosing system meets all State published guidelines.
8.0 VERTICAL GRADES AND CLEARANCES
1. The bottom of any leaching area shall be a minimum of five (5) feet above the maximum high ground water table.
2. Subsurface sewage disposal systems shall not be constructed in fill which is to be placed directly on or near ledge, hardpan or other impervious materials or in any area where peat is present or when the maximum groundwater level is five (5) feet or less below natural surface grade. A depth of at least five (5) feet of pervious material (determined by percolation test) in natural soil shall be maintained below the bottom of the leaching area. The vertical distance from any leaching surface of a subsurface disposal system to bedrock, ledge, fractured ledge or impervious soil shall be a minimum of six (6) feet.
3. The finished grade over the disposal area shall not be more than two (2) feet and not less than twelve (12) inches from the top of the stone forming the distribution lines in the leaching field or from the inlet pipe of seepage pits. The disposal area shall be located and graded so that no surface water will accumulate in the area. The area within 25 feet of the disposal area shall be sloped to drain with at least two percent grade. All other grading shall comply with the State Environmental and Sanitary Codes.
4. WETLAND AND FLOOD PLAINS - WATER TABLE LIMITS No subsurface sewage disposal system shall be constructed less.than six (6) feet above the high water level in any area which is subject to periodic flooding. No basement floor shall be constructed less than two (2) feet above the high water level or ground water table. If a foundation drain is planned or existing it must be shown on the plan along with its discharge point. Foundation drainage systems shall not terminate below the surface of the ground.
9.0 BACKFILL
To avoid sewage disposal problems resulting from improper
backfill practices, there shall be strict adherence to Title 5 of the State
Environmental Code and all other sections of the State Codes that relate to
backfill.
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Town of Sherborn - Board of Health Regulations
10.0 DISTANCE REQUIREMENTS
10.1 WELL DISTANCE
No leachline, seepage pit or other means of subsurface
disposal shall be placed closer than one hundred twenty five (125) feet from any
private well or other private source of water supply to be used for drinking
purposes or culinary uses. The distance from a well to a sewage disposal system
shall be maximized as follows:
- No leaching area shall be less than one hundred twenty five (125) feet from a well located uphill from such leaching area.
- No leaching area shall be less than one hundred fitly (150) feet from a well located downhill from such leaching area.
- When the soil percolation rate is less than three (3) minutes per inch, the distances noted in A and B above shall be increased by a minimum of twenty five (25) feet.
10.2 MINIMUM DISTANCES
All proposed subsurface sewage disposal areas and
expansion areas shall be not less than ten (10) feet from any solid subsurface
drain pipe if that drain invert is above the invert of the closest leaching
trench, line, or bed, and twenty-five (25) feet from any solid subsurface drain
pipe if the invert of that solid subsurface drain pipe is at or below the invert
of the closest leaching trench, line, or bed. All subsurface sewage disposal
areas and expansion areas shall also be twenty-five (25) feet from any curtain
drain designed for that system, twenty (20) feet from any property line and one
hundred twenty five (125) feet from any open surface drain or any water course,
including streams, brooks, ponds, swamps or other wetlands (as defined in
Chapter 131, Section 40 of the Massachusetts General Laws).
10.3 OTHER DISTANCES
All other distance requirements shall be as specified
under Title 5 of the State Environmental Code. All distances shall be increased
where required by conditions peculiar to a location or by other Town Regulations
or By-Laws.
11.0 INSPECTIONS
A. AGENT INSPECTIONS
Before issuing any of the permits required, the authorized agent for the Board of Health shall inspect the properly as shown on the submitted plan. The Board of Health or its Agent may require such further plans and tests as they consider necessary.B. INSPECTION LIMITATIONS
Inspections shall not be made when snow covers the ground, nor shall tests be performed in frozen soil.C. NUMBER OF INSPECTIONS
Prior to any construction of the septic system, the builder shall submit to the Board of Health two (2) copies of the foundation plan certified by a registered surveyor, civil or sanitary engineer, showing elevations of the top of the cellar floor and top of the foundation and the location of the well."
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Town of Sherborn - Board of Health Regulations
There shall be a minimum of three (3) in-progress inspections of the disposal works. One inspection shall be conducted when the disposal area is excavated and the septic tank is in place, one when the construction of the septic system is completed except for backfilling and one when the finished grading of the lot is completed. The design engineer shall place the schedule of required inspections on the plan.
D. INSPECTION REQUIREMENTS
All stone to be used in the leaching area shall be inspected prior to placement. The entire system, including the building sewer, shall remain exposed for the second inspection, and the distribution box shall be level and filled with water. A reasonable period of notification shall be given the Board of Health for an examination request.
12.0 LOCATION RECORD - The builder shall submit to the Board of Health two (2) copies of the House Certification Plan as submitted to the building inspector. This plan shall include the location of the well and sewage disposal system with respect to the foundation with sufficiently accurate dimensions to locate both in the future.
13.0 MANHOLES AND CLEANOUTS
13.0.1 A manhole or cleanout shall be required at any change of slope or at any change in direction of the principle sewage distribution line greater than 45 degrees and in any event there shall be cleanouts or manholes at a minimum of 150 feet apart. No septic tank shall be located more than 50 feet from the structure that it serves.
13.0.2 LINE AND GRADE - Both the building sewer and the pipeline from the septic tank to the distribution box shall be laid in a straight line in a uniform slope unless provided with cleanouts and manholes as in Section 13.0.1.
14.0 RESERVED
15.0 CONSTRUCTION IN FILL Construction of disposal areas in clean granular fill shall be permissible under the following conditions:
A. Where the impervious material can be excavated to pervious material below and replaced with clean gravel fill, and a pervious strata at least five (5) feet thick in natural soil can be maintained below the bottom of the disposal area.
B. Where a depth of at least five (5) feet of pervious material in natural soil can be maintained below the bottom of the leaching area. In no case shall excavation be allowed into impervious material without penetrating into pervious materials. Penetration shall be made beyond any soil that is organic, such as loam, peat or subsoil.
C. Fill material for systems constructed in fill shall consist of select on-site or imported soil material. The fill shall be comprised of clean granular sand, free from organic matter and deleterious substances. Mixtures and layers of different classes of soil
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Town of Sherborn - Board of Health Regulations
shall not be used. The fill shall not contain any material larger than two inches. A sieve analysis, using a #4 sieve, shall be performed on a representative sample of the fill. Up to 45% by weight of the fill sample may be retained on the #4 sieve. Sieve analyses also shall be performed on the fraction of the fill sample passing the #4 sieve, such analyses must demonstrate that and material meets each of the following specifications:
SEIVE SIZE EFFECTIVE
PARTICLE SIZE% THAT MUST
PASS SIEVE# 4
# 50
#100
#2004.75 mm
0.30 mm
0.15 mm
0.075 mm100%
10% - 100%
0% - 20%
0% - 5%
A plot of the sieve analyses of the portion of the sample passing the #4 sieve shall fall on or between the lines on the following graph:
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Town of Sherborn - Board of Health Regulations
It shall be the responsibility of the engineer to show that this requirement is met, by submission to the Board of Health the results or a sieve analysis of a sample taken from the installed fill.
16.0 FILL RESTRICTIONS
The filling, dredging or altering of land which is
submerged during any portion of the year in order to provide a sufficient area
to make it suitable for building purposes shall not be considered acceptable.
Such lands (Chapter 131, Section 40 of the Massachusetts General Laws) shall be
considered as not suitable for subsurface sewage disposal.
17.0 PURCHASE WARNING
Anyone contemplating the purchase of land for building
purposes should make careful inquiry into the problems of maximum water table,
drainage and soil conditions with a registered sanitarian, civil or sanitary
engineer before committing themselves to an irrevocable purchase agreement.
18.0 PRIVIES AND CHEMICAL TOILETS
18.1 PRIVIES - Permanent privies shall not be allowed.
18.2 RESERVED
18.3 TEMPORARY FACILITIES - When no approved sanitary facilities exist on the site, all builders and contractors shall provide approved temporary sanitary facilities at their work sites. These facilities shall remain on the site from the first day of operation until completion of the contract.
19.0 RESERVED
20.0 MAINTENANCE
20.1 REQUIREMENT FOR ADVICE TO OCCUPANTS
Prior to the issuance of a
Certificate of Compliance by the Board of Health, the applicant shall:
A. Provide a permanent chart at a location in the dwelling near the water supply pressure tank which shows the as-built location on the lot of the well, septic tank, distribution box and leaching area.
B. The chart shall also contain a written advisory as follows: "The Board of Health recommends that the septic tank be inspected annually. The septic tank shall be pumped when the depth of the sludge at the bottom of the tank plus the depth of scum at the top of the tank are one-third or more of the total tank liquid depth below the outlet pipe."
C. Instruction and directions as applicable for any water supply treatment units or sewage pumps shall be provided. Manufacturer's technical data for all such equipment and the location and telephone number at which maintenance and emergency assistance may be obtained shall be included.
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Town of Sherborn - Board of Health Regulations
20.2 CLEANERS OR ADDITIVES - Chemical cleaners or additives shall not be used in septic systems. Such cleaners or additives can contaminate ground water and be drawn into well water supplies.
21.0 INNOVATIVE AND ALTERNATIVE TECHNOLOGIES
The use of State approved
innovative and alternative technologies shall be permitted without a Variance
Hearing unless specifically in conflict with the intent of these regulations, as
determined by the Board of Health.
22.0 VARIANCE PROCEDURES
| A. |
The Board of Health may vary the application of any of its rules and regulations, or of State Regulation, Title 5, the Environmental Code, when so empowered to do so, for any case, when, in its opinion, (l) the enforcement thereof would do manifest injustice; and (2) the applicant has proved that the same degree of environmental protection required under the regulations can be achieved without strict application of the particular provision. Every request for a variance shall be in writing and shall state the specific variance sought and the reasons therefore. No variance shall be granted except after the applicant has notified all abutters by certified mail, return receipt requested, at his/her own expense at least ten (10) days before the Board of Health meeting at which the variance request will be on the agenda. No hearing date for a variance shall be scheduled until the Determination of the Conservation Commission has been received by the Board of Health. Any variance granted or denied shall be in writing and shall be conspicuously posted for thirty days following its issuance and shall be available to the public at all reasonable hours in the office of the Board of Health while it is in effect. When, in its opinion, it is in the public health interest, the Board may require that the variance granted be placed on record by a document filed at the Registry of Deeds. |
| B. |
Any variance or other modification authorized to be made by these regulations may be subject to such qualification, revocation, suspension or expiration as the Board of Health expresses in its grant. A variance or modification authorized to be made by these regulations may otherwise be revoked, modified or suspended, in whole or in part, only after the holder thereof has been notified in writing and has been given an opportunity to be heard. |
23.0 VIOLATIONS - Violation and penalty shall be as in Title 5 of the State Environmental Code.
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Town of Sherborn - Board of Health Regulations
1.0 PERMITS
1.1 In order to enforce the provisions of Article 11 of the State Sanitary Code, Regulation 4, "Water Supply", a permit from the Board of Health shall be required for the development of a suitable source of water supply prior to the start of any construction on a building or buildings intended for human occupancy where water will be used.
1.2 PERMIT REQUIREMENTS
No private or semi-public water supply shall be
installed, altered or repaired until a permit has been obtained from the Board
of Health or its Agent. The fee for this permit shall be set by the Board of
Health from time to time. A permit so granted shall expire 24 months from the
date of issue unless construction is begun.
1.3 PERMIT APPLICATION
A plot plan-shall be submitted with the application
for a well permit to the Board of Health indicating the proposed location of the
well, all buildings, boundary lines and septic systems (within 200 feet).
1.4 PERMIT RELEASE REQUIREMENTS
No foundation or building permit shall be
issued until the well is installed, completed and has been demonstrated to
supply water of the quality and quantity specified herein. No occupancy of the
building the well is to serve shall be permitted until an acceptable tested
water sample has been obtained from a tap in the building.
1.5 WELL PUMP AND STORAGE TANK PERMITS
A Well Pump and Storage Tank Permit
shall be required. This shall be obtained from the Board of Health after the
well has been approved by the Board for suitability both as to water quality and
quantity.
2.0 DEFINITIONS
2.1 WELL
Includes any pit, pipe excavation, spring, casing, drill hole or
other source of water to be used for any purpose of supplying potable water in
the Town of Sherborn and shall include dug wells, driven or tubular wells,
drilled wells (artesian or otherwise) and springs, gravel packed, gravel walled
wells, gravel developed and wash borings and as further described in U.S.
Environmental Protection Agency Manual of Individual Water Supply Systems.
2.2 WATER SYSTEMS
Includes pipes, valves, fittings, tanks, pumps, motors,
switches, controls and appurtenances installed or used for the purpose of
storage, distribution, filtration, treatment or purification of water for any
use whether or not inside a building.
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Town of Sherborn - Board of Health Regulations
2.3 PRIVATE WATER SUPPLY
Any water system serving or intended to serve water
for human consumption or for domestic uses or purposes on one lot. The system
shall be contained on the lot and shall include all of the sources, treatment
works and distribution lines to the point where distribution takes place within
the building on the lot.
2.4 SEMI-PUBLIC WATER SUPPLY
Any water system serving or intended to serve
water for human consumption or for domestic uses or purposes including, but not
limited to, multiple dwellings, restaurants, dairies, schools, institutions,
campgrounds, recreational camps for children, state/town forests, parks and
beaches.
3.0 SANITARY PERFORMANCE
The well contractor shall observe sanitary measures
and precautions in the performance of his work in order to prevent pollution or
contamination of the well. Use of water from streams, swamps or abandoned wells
for drilling shall be prohibited.
4.0 WELL DRILLERS
Well drillers must be registered with the Massachusetts
Water Resources Commission. A copy of such registration shall be available on
site for the Agent's review.
5.0 WELL PROTECTION
No well shall be drilled in
standing water or "low spots" that may allow "ponding" of
rainfall, run-off or ground water surfacing. The casing shall be set
sufficiently into bedrock and properly sealed to keep out surface water or entry
of any other surface or subsurface contamination. The well cap shall be eighteen
(18) inches above surface grade. A four (4) foot diameter apron shall be
constructed around the casing sloping away at a maximum of eight(8) horizontal
to one (1) vertical in all directions to the finished grade. The casing shall be
sealed with cement grout to six (6) feet below grade or to bedrock, whichever is
less. Wells installed downgrade of septic systems shall have the casings sealed
with cement grout from the apron at surface grade to twenty (20) feet below
grade or to bedrock. When bedrock is encountered within twenty (20) feet of
surface grade, the seal shall be extended at least five (5) feet into the
impervious (bedrock) formation.
6.0 WELL LOCATION
The distance from a well to a sewage disposal system shall
be maximized
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Town of Sherborn - Board of Health Regulations
7.0 NUMBER OF WELLS
There shall be a separate well for each house. The well
serving that house shall be located within the lot boundaries of the house site.
No well shall be used to supply more than one dwelling (Chapter 40, Section 54
MGL).
8.0 PUMP HOUSES
Pump houses, pump rooms and pitless adapters shall be
installed in accordance with the "Individual Water System" USEPA
manual.
9.0 PUMP HOUSE PROTECTION
Pump houses, pump or pipe pits and wells shall be
designed and constructed so as to prevent flooding, freezing and the entrance of
sources of pollution or contamination.
10.0 APPROVALS
No person shall install or enter into a contract for
installing or making additions, modifications or alterations to any private or
"semi-public" water supply before submitting complete plans,
specifications and descriptions to the Board of Health and receiving from them
written approval. Private and "semi-public" water supply systems shall
be approved by the Board of Health before occupancy is permitted.
11.0 WELL SPECIFICATIONS
11.1 WELL YIELD
There shall be a minimum yield of 300 gallons per bedroom per day at twenty (20) lbs. per square inch (p.s.i.) at the highest fixture serviced. A bedroom shall include any undeveloped area that could be made into a bedroom. System capacity for "semi-public" water supplies must be adequate to meet the projected needs.11.2 STORAGE
All demands for water shall be provided from storage in a pressure tank. Pressure tanks for individual home installations shall be of a diaphragm type and have a minimum capacity of thirty six (36) gallons. Pressure tanks may be installed in series to meet storage volume requirements.
12.0 TESTS
A log of the well, showing depth and type of overburden, depth of
casing installed below surface grade, diameter of casing and diameter of the
hole in the rock, static water level and the pumping rate which can be sustained
for at least four (4) hours, at a constant drawn down depth.
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Town of Sherborn - Board of Health Regulations
A. A pump test shall be made with the faucet open to waste for a four (4) hour constant pumping period using a pump capable of producing a flow rate at least twice that specified in 12.0G below.
B. In the event the well is exhausted during the initial four (4) hour pump testing period, the faucet shall be so regulated after suitable well recovery (of not more than thirty (30) minutes) in order to allow pumping at a constant rate for an additional four (4) hours at a constant drawdown depth to determine the yield.
C. A sustained pumping rate of two (2) gallons per minute for a four (4) hour period shall be the minimum rate.
D. The well (after pump testing) shall recover to within ninety five percent (95%) of the original static water level within a twenty four (24) hour period.
E. Testing and evidence to show satisfactory well yield and recovery shall be demonstrated in the presence of the Agent for the Board of Health.
F. The results of all testing shall be submitted on an approved form to the Board of Health for approval and the well contractor shall be responsible for all data submitted.
G. Quantity tests shall be performed by competent pump or well drilling contractors and a well shall produce a supply for each dwelling unit served by an on-site well as follows:
| WELL DRAWING
DEPTH
to 100 feet |
WELL YIELD GPM -
4 HRS (minimum
|
13.0 AUXILIARY POWER
Auxiliary power must be available to maintain a water
supply for multiple dwellings.
14.0 GRADE TERMINATION
A pitless adapter shall be provided such that the
permanent watertight casing of the well shall terminate a minimum of eighteen
(18) inches above the finished grade and/or the elevation of 100-year flood.
15.0 RESERVED
16.0 PIPES AND EQUIPMENT
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Town of Sherborn - Board of Health Regulations
17.0 WATER QUALITY AND QUANTITY SPECIFICATIONS
17.1 SANITARY PROTECTION
Sanitary protection shall be incorporated into the
construction of the well. All newly completed wells shall be disinfected in
accordance with instructions from the U.S. Environmental Protection Agency
Manual of Individual Water Supply Systems.
17.2 SAMPLING/QUALITY
A minimum of two (2) water samples shall be submitted
to a state approved laboratory for analysis, consistent with the requirements of
the Board of Health. One sample shall be taken when the well installation is
completed and one shall be taken from a tap in the dwelling before occupancy.
All results shall be submitted to the Board for approval. Acceptance of water
quality shall also be based on its conformance to the normal characteristics of
ground water in the area, as well as established state and federal drinking
water standards.
17.3 LABORATORY TESTS
| Color Turbidity Manganese Nitrate Nitrogen Chloride Iron Sodium |
15 units 5 Std. Turbidity Units 0.05 mg/l 10 mg/l 250 mg/l 0.3 mg/l *20 mg/l |
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Town of Sherborn - Board of Health Regulations
* Sodium content exceeding this level shall be made known to the occupant(s) and/or owner(s) in writing and copy of such notification, signed by the occupant(s) and owner(s) submitted to the Board of Health.
17.4 WATER CONDITIONING
Permanent disinfection of a polluted supply shall be
prohibited. If the natural water quality does not meet the physical and chemical
criteria as listed in Section 17.3, water conditioning shall be required. Water
softener or other treatment backwash shall not be discharged into the septic
system. Treatment units shall be installed with the capability of by-passing
such units if necessary or desired.
17.5 PROHIBITIONS
17.6 OTHER USE PROHIBITIONS
Wells used for drinking water and domestic water
supply shall not be used to provide water for ground water heat pump systems,
for water cooling or air conditioning systems or irrigation. Any well used for
such systems shall be approved by the Board of Health only after the applicant
has submitted evidence to the satisfaction of the Board of Health that such use
will not disrupt any quantity or quality of water from any nearby well, to
satisfy the manufacturer's recommendations for proper equipment operation.
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Town of Sherborn - Board of Health Regulations
18.0 ENFORCEMENT
A. The provisions of Title 1 of the State Environmental Code shall govern the enforcement of these regulations.
B. Orders: Service and Content
1. If an examination as provided for in Sections 12.0 and/or 17.3 reveals failure to comply with the provisions of these regulations, the Board of Health may order the person or company responsible to comply with the violated provision.
2. The inspection and these regulations cannot be construed as a guarantee by the Town of Sherborn or its Agents that the water system will function satisfactorily.
3. The Board of Health may require a restriction to be recorded in the Registry of Deeds in cases which, in the opinion of the Board of Health, the water analyses show marginal compliance with the criteria of these regulations.
19.0 VARIANCE PROCEDURES
A variance to the well regulations may be granted by
a vote of the Board at a regularly scheduled meeting upon receipt and review of
written application/request for such variance, and payment of the required fee.
However, variances to side lot setback and distance to an adjacent well not on
the applicant's property will require a full Hearing with abutter notification.
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Town of Sherborn - Board of Health Regulations
III
PUBLIC AND ENVIRONMENTAL HEALTH REVIEW REGULATIONS AND
STANDARDS FOR
OTHER THAN A SINGLE FAMILY DWELLING ON A
SINGLE LOT
1.0 AUTHORITY
This regulation is adopted under M.G.L. Chapter 111, Section
31, which gives the Board of Health (hereafter designated as "the
Board") authority to make reasonable health regulations, violations for
which shall be punished by a fine of not more than 300 dollars. This regulation
is also adopted under M.G.L. Chapter 111, Section 122, which directs the Board
of Health to examine into all nuisances, sources of filth, and causes of
sickness within its town, which may, in its opinion, be injurious to the public
health and to destroy, remove, or prevent the same as case may require. This
regulation is also adopted under M.G.L. Chapter 111, Section 143.
2.0 PURPOSE
These regulations are intended to protect the public and
environmental health, provide adequate water supply and wastewater treatment,
and ensure that there will be adequate protection against flooding, siltation,
and other drainage problems.
These regulations are also intended to make certain that earth removal projects will (a). maintain a depth to groundwater which is adequate for the construction of subsurface wastewater disposal systems under both local regulations and thc State Environmental Code and (b). not be injurious to water supply and (c). will be carried out so as to provide adequate protection against flooding, siltation, and other drainage problems.
3.0 JURISDICTION
3.1 ENVIRONMENTAL HEALTH IMPACT REPORT
The applicant for any proposed project often (10) or more dwelling units, whether in a subdivision or on an approved roadway, or any commercial or industrial development with a gross floor area exceeding 7500 square feet, or a design sewage flow of 4400 gallons per day or greater, or any Planned Unit Development (PUD), or any earth removal project exceeding 350 cubic yards of material per lot, or 1000 cubic yards of material per project, shall submit an ENVIRONMENTAL HEALTH IMPACT REPORT (EHIR) to the Board of Health. The report shall meet the criteria required by this and all other applicable Board of Health regulations, and shall provide specific information relative to the operation of the proposed sewage treatment and disposal systems, including soil conditions, surface drainage calculations, hydrogeologic descriptions of groundwater resources and movement, effects of precipitation, and wastewater treatment methodology. The applicant shall also estimate the impact of the project on public and private water supply sources.3.2 ENVIRONMENTAL HEALTH PERMIT
The applicant for any project which meets the criteria stated above shall be required to obtain an ENVIRONMENTAL HEALTH PERMIT from the Board of Health.
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Town of Sherborn - Board of Health Regulations
3.3 ALL OTHER PROJECTS
All other projects within the jurisdiction of the Board of Health and which require approval from the Board of Health shall be required to meet the standards and criteria which are set forth in Sections 8.0, 12.0 and 13.2.
4.0 BURDEN OF PROOF
Any applicant required to file an EHIR with the Board
shall have the burden of proving by submission of clear and convincing evidence
that the proposed work shall not have unacceptable, significant individual or
cumulative effect upon the public or environmental health.
5.0 DEFINITIONS
Person: Every individual, partnership, corporation, firm, association, group, or governmental entity, owning property or carrying on an activity subject to this regulation.
Board: Board of Health
6.0 APPLICATIONS FOR PERMITS
6.1 GENERAL
Written application shall be filed with the Board for all activities which come under the jurisdiction of this regulation, The application shall include such information and plans as are necessary by the Board to describe the proposed activities and their effects upon the public health and the environment. No such activities shall commence without receiving and complying with a permit issued by the Board pursuant to these regulations.The EHIR shall be filed with the Board of Health within 24 hours of any other filings or applications to any municipal boards or commissions. (See Section 6.2)
6.2 OTHER APPLICATIONS
The Board may, in appropriates cases, accept as part of the application and plans under this regulation, the following filings to other municipal boards or commissions:
- Notice of Intent filed with the Conservation Commission
- Building Permit application filed with the Building Inspector.
- Earth Removal Permit application filed with the Special Permit Granting Authority.
- Preliminary and Definitive Plans and Planned Unit Development applications filed with the Planning Board.
In such case, additional information shall be required when applicable to provide the complete submittal requirements of this regulation.
6.3 FEES
At the time of application or request to the Board, the applicant shall pay a filing fee as may be set from time to time by the Board.
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Town of Sherborn - Board of Health Regulations
In addition to the filing fee, the Board shall require the applicant to pay reasonable costs and expenses borne by the Board of Health or other town agencies for specific expert engineering and consultant services deemed necessary by the Board to review the applications. Said payment can he required at any point in the deliberations prior to a final decision being rendered. Said services may include, hut are not necessarily restricted to general engineering analysis, hydrogeologic and drainage analysis, and legal advice including public health and environmental land use law.
7.0 WATER SUPPLY
The proposed source of water supply shall provide water of a
quantity and quality in accordance with Town, State, and Federal water supply
standards for domestic use. In the case of sites to be served by on-site wells,
a hydrogeological evaluation showing ground water flow directions and the
proposed placement of wells and septic systems. Zones of Contribution to wells
shall be delineated except for the following: (a) Single or Two Family
Dwellings; (b) Single Family residential subdivisions; or (c) Projects where the
required well yield is 1375 gallons per day or less. This evaluation shall be
performed by a qualified engineer or geologist, at the expense of the applicant,
to be reviewed by the Board of Health for this determination.
8.0 SEWAGE DISPOSAL - The applicant shall submit evidence that:
1. The proposed location of the project has soil conditions suitable for the subsurface disposal of sanitary or other applicable types of wastewaters in accordance with the regulations of the Board of Health along with all applicable state and federal regulations.
2. Wastewater disposal shall meet the strictest minimum standards of current Commonwealth of Massachusetts or Federal regulations of surface or ground waters.
For any subdivision having ten (10) or more dwelling lots or any project having a minimum design wastewater flow of 4400 gallons per day, a hydrogeological evaluation shall be performed by a qualified engineer or geologist, at the expense of the applicant, to be reviewed by the Board of Health for this determination. Hydrogeological evaluations shall include determination of geologic stratigraphy, determination of ground water flow directions, determination of maximum ground water elevation, determination of minimum groundwater elevation when relevant, evaluation of water table mounding, and prediction of downgradient water quality impacts. Maximum ground water elevation shall be determined by direct observation during the season of the year when the water table is high as determined by the Board and as adjusted by the method described in "U.S. Geological Survey, Water Resources Investigations, Open File Report 80-1205 - Probable High Groundwater Levels in Massachusetts", or subsequent revisions thereof
9.0 SPECIAL INDUSTRIAL AND COMMERCIAL REQUIREMENTS
These regulations shall
apply to any and all projects for industrial or commercial projects or for any
other project except for the construction of single and two family dwellings.
These regulations shall also apply to industrial or commercial operations
conducted on residential
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Town of Sherborn - Board of Health Regulations
dwelling property of any size, and also to any hobbyist operation which utilizes materials on the Massachusetts Substance List.
A single party of responsibility shall be designated for the proposed project and shall be the applicant of record. The single party of responsibility shall be the owner of the subject building or facility and shall not be an individual tenant therein. All applications for permits from the Board of Health shall be submitted by this responsible party. All limitations and conditions with regards to any waste, wastewater or atmospheric discharge shall be the responsibility of the responsible party, who shall see that all tenants operate within the limitations and conditions of the permits issued. The Board of Health reserves the right to take whatever appropriate action might be necessary against an individual tenant. However, the Board of Health shall hold the responsible party as the entity of primary responsibility.
Septic tanks serving any commercial or industrial facility shall have the contents of the septic tank serving the facility sampled and tested on an annual basis for volatile organic compounds (EPA 624) AND pH, as well as any other parameters required by the Board of Health on a case by case basis. The sampling shall be performed and the results submitted to the Board of Health without having to be requested. The sample shall be taken in the time period of March, April, or May of each year and the results submitted to the Board of Health prior to July 1st.
All floor drains, except as serving only sanitary facilities, shall be discharged to a tight collection tank and taken away by a licensed waste hauler. Such floor drains shall not be discharged to a septic system, storm drain, dry well, or other surface or subsurface discharge point.
The Board of Health may, on a case by case basis, require that each tenant or a multi-use facility shall have a separate discharge point to the septic system. Each such discharge shall be equipped with a flow meter. Where water usage records will accurately reflect the wastewater discharge, a water usage meter may be acceptable. Otherwise, it will be required to install an effluent or discharge meter.
Applicants for facilities subject to this regulation which require Board of Health project evaluation shall complete the Board of Health "OPERATIONS INFORMATION QUESTIONNAIRE" which is available from the Board of Health office.
All facilities which store, use, manufacture, or discharge any materials, compounds, or chemicals which are on the Massachusetts Substance List shall file a contingency plan with the Board of health. It shall be updated on an annual basis or when any changes are made in such items.
10.0 Reserved
11.0 Reserved
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12.0 DRAINAGE
1. The proposed drainage for a subdivision or project shall not cause an increase or decrease in either the total volume of runoff discharged offsite, or total rate of runoff discharged offsite, as compared with the respective discharge offsite prior to the development. Such condition shall be required for storms of 1, 10, 50, and 100 year frequency events.
2. No channelization of surface runoff shall be allowed offsite without the written consent of the owner of the land affected, in the form of a permanent grant of easement, recorded at the Registry of Deeds.
3. In cases where runoff infiltration cannot, in the opinion of the Board of Health, be appropriately implemented because of the possibility of contamination of water supply, or because of extremely poor infiltrative and permeability characteristics of the soil, the requirement as regards volume may be waived by the Board of Health, provided the applicant provides such additional preventive measures to prevent any increase in elevation or duration of downstream flood elevations. Such additional measures may be, but are not restricted to, the construction of compensatory flood storage facilities and/or the creation of additional wetlands.
4. If detention or retention ponds are utilized, slopes shall be no steeper than 4 horizontal to 1 vertical, and design water depth shall not exceed three (3) feet. Minimum bottom slope for "dry" detention areas shall be two (2) percent,
5. Poor infiltrative and permeability conditions are defined as a soil permeability of less than 1 X 10 -4 centimeters per second. Unless, in the opinion of the Board of Health, such testing is not applicable for a particular site, all permeability tests shall be in-situ field bore hole tests for permeabilities in the acceptable range as specified above. If permeability testing is desired to be performed in soils of lesser permeability, laboratory tests for hydraulic conductivity shall be performed on undisturbed samples by the Falling Head Permeability Test using flexible membrane triaxial test cells with back pressure (Army Corps of Engineering Manual EM 1110-2-1906 Appendix VII).
6. The storm water management design shall include a control strategy and plan for Best Management Practice (BMP) for any particular development or project and shall accomplish the following goals,
- Reproduce, as nearly as possible, the hydrological conditions in the ground and surface waters prior to development.
- Provide the best level of removal for urban pollutants using BMPs.
- Have an acceptable future maintenance burden.
- Have a neutral effect on the natural and human environment.
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Town of Sherborn - Board of Health Regulations
- Be appropriate for the site, given physical constraints.
- Provide a sufficient level of health and environmental protection during the construction phase.
7. Design of BMPs and Infiltration and Detention structures shall be according to procedures acceptable to the Board of Health such as are described in the publications entitled:
"Controlling Urban Runoff - A practical manual for planning and designing urban BMP's" - Department of Environmental Programs - Metropolitan Washington Council of Governments
"Underground Disposal of Storm Water Runoff - Design Guidelines Manual", February 1980, Federal Highway Administration - Department of Transportation, which is similar to:
"Recharge Basins for Disposal of Highway Storm Drainage", Research report 69-2, of the New York Department of Transportation
American Society of Civil Engineers Publication entitled "Design of Urban Runoff Quality Controls" - ISBN 0-87262-695-4
American Society of Civil Engineers Publication entitled "Urban Runoff Quality - Impact and Quality Enhancement Technology" - ISBN 0-87262-577-X, 1986
"Erosion and Sediment Control in Site Development- Massachusetts Conservation Guide - Volume 1"
13.0 EARTH REMOVAL STANDARDS
13.1 SUBMITTAL REQUIREMENTS
Plans for any proposed earth removal operation
exceeding 350 cubic yards of material per lot or 1000 cubic yards per project,
shall be filed with the Board of Health and shall contain the following
information and meet the following criteria:
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13.2 STANDARDS
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Town of Sherborn - Board of Health Regulations
14.0 ENVIRONMENTAL HEALTH IMPACT REPORT -
SCOPE AND GENERAL SUBMITTAL
REQUIREMENTS
Plans submitted pursuant to this regulation shall include but not
be limited to the following.
- Demonstrate clearly that the soil conditions are generally suitable for subsurface sewage disposal and will meet the needs of the project. In the case of a subdivision, each and every lot shall be shown to be suitable for such purpose.
- To determine the pattern of ground water flow.
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Town of Sherborn - Board of Health Regulations
15.0 OTHER PERMITS
No well permits or Disposal Works Construction Permits
shall be granted for any project subject to this regulation until the Board has
issued the Environmental Health Permit.
16.0 FINDINGS REQUIRED
Prior to granting a permit under these regulations,
the Board shall make findings with supporting documentation. The Board may issue
the Environmental Health Permit, based on the review of the impacts of the
project documentation as specified in this regulation, if said Board finds that
the proposed project will comply with all of the standards of this regulation.
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Town of Sherborn - Board of Health Regulations
IV
DESIGN, OPERATION AND MAINTENANCE
of
SMALL WASTEWATER TREATMENT FACILITIES
1.0 PERMIT REQUIREMENTS
1.1 DISPOSAL WORKS CONSTRUCTION PERMIT
No system or facility to be used for treating, neutralizing, stabilizing or disposing of wastewater from homes, public buildings, commercial or industrial buildings or any types of establishments shall be located, constructed, installed, operated, altered or repaired until a DISPOSAL WORKS CONSTRUCTION PERMIT for such shall have been issued by the BOARD OF HEALTH. No construction of any building or facility which relies upon such wastewater system or facility shall be allowed until a DISPOSAL WORKS CONSTRUCTION PERMIT shall have been issued by the Board of Health.Such system or facility as regulated herein shall include, but not be restricted to, SEWERS serving such facility, WASTEWATER PUMPING STATIONS, WASTEWATER TREATMENT WORKS, ALL WASTEWATER TREATMENT OPERATIONS, SLUDGE TREATMENT AND MANAGEMENT, DISINFECTION, ADVANCED WASTE TREATMENT, SUBSURFACE DISPOSAL AND LAND TREATMENT, WASTEWATER RECYCLING AND RE-USE.
Such system or facility as regulated herein shall be referenced as SMALL WASTEWATER TREATMENT PLANT ("SWWTP").
1.2 CERTIFICATE OF COMPLIANCE AND OPERATIONS PERMIT
No SWWTP as permitted herein shall be placed in service, nor shall new buildings or facilities or additions to existing buildings or facilities which rely upon such SWWTP be occupied or used until the Board of Health has issued a Certificate of Compliance and Operations Permit.1.3 SERVICE AREA AND LIMITATIONS
The SWWTP shall not serve a volume of sewage flow from any subject project in excess of the aggregate volume that would be generated by each lot, which could have constructed upon it, a septic system installed and operated in full compliance with Title 5, the State Environmental Code and the regulations of the Sherborn Board of Health.In order to provide adequate wastewater treatment capacity in the event of a failure of said SWWTP, each residential lot connected to a SWWTP shall be shown to have reserve area adequate to construct a septic system in accordance with Title 5, the State Environmental Code and the regulations of the Sherborn Board of Health.
2.0 SUBMITTALS
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Town of Sherborn - Board of Health Regulations
2.1 APPLICATIONS, REPORTS, PLANS, DATA, DOCUMENTS A copy of all applications, reports, plans, specifications, data and supporting documents required by these regulations and by the regulations of any other agency in connection with the approval or operation and maintenance of the subject facility shall be submitted to the Board of Health. In the case of requests for a Board of Health action, such materials shall be submitted a minimum of 90 days prior to the date upon which an action by the Board of Health is desired. In the case of submittals to other agencies, all material shall be submitted to the Board of Health at the time of submittal to that agency. A Board of Health Disposal Works Construction Permit will not be issued prior to approval by the Massachusetts Department of Environmental Protection (formerly DEQE). Other submittals shall be made in accordance with schedules as specifically designated by the Board of Health.
3.0 OTHER REGULATIONS AND GUIDELINES
3.1 FEDERAL, STATE AND LOCAL REGULATIONS The applicant for any SWWTP shall comply with all applicable FEDERAL, STATE, and TOWN or CITY regulations as existing and may be amended from time to time. All data, reports and plans designated by those regulations shall be submitted to the Board of Health. All data required by these regulations shall be promptly submitted to the Board of Health in a timely fashion.
3.2 STANDARDS FOR DESIGN, OPERATIONS AND MAINTENANCE These regulations herein do not and are not intended to cover all aspects of engineering design, operation and maintenance of SWWTPs. Rather, they outline the specific Board of Health INTERESTS and POLICIES that may not be adequately reflected in other existing regulations, policies and manuals. Where local regulations or specifications herein are more strict, they shall prevail. Where regulations or specifications or guidelines of other political subdivisions or agencies of jurisdiction or as included herein are more strict, they shall prevail.
The applicant shall specifically follow the following regulations and guidelines which address the various aspects for the systems and facilities considered herein, and are incorporated as a part of these regulations by reference where applicable.
MASSACHUSETTS DEPARTMENT OF ENVIRONMENTAL PROTECTION (DEP) (formerly DEQE)
Guidelines for the Design, Construction, Operation and Maintenance of Small
Sewage Treatment Facilities with Subsurface Effluent Disposal
Title 5 - State Environmental Code
Ground Water Quality Standards
Ground Water Discharge Permit ProgramNEW ENGLAND INTERSTATE WATER POLLUTION CONTROL COMMISSION
(NEIWPCC)Guidelines for the Design of Wastewater Treatment Works 1980 Edition TR-16
WATER POLLUTION CONTROL FEDERATION (WPCF - MOP #9)
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Town of Sherborn - Board of Health Regulations
MANUAL OF PRACTICE NO. 8 - Wastewater Treatment Plant Design
RECOMMENDED STANDARDS FOR SEWAGE WORKS: GREAT LAKES - UPPER MISSISSIPPI RIVER
BOARD OF STATE SANITARY ENGINEERS (the Ten State Standards)
WATER POLLUTION CONTROL FEDERATION (WPCF - MOP #9) MANUAL OF PRACTICE NO. 9 - Sewer Design and Construction (Same as AMERICAN SOCIETY OF CIVIL ENGINEERS Manual and Reports on Engineering Practice No. 37)
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY, Municipal Environmental Laboratory, "Design Information on Rotating Biological Contactors (EPA- 60012-84-106)
For situations not covered by these regulations and guidelines, good engineering practice, as determined by the Board of Health, shall govern.
While it is recognized that certain modifications or exceptions may be necessary where justified in unusual situations, any such modifications or exceptions shall only be provided by application for variance to the Board of Health. Any variances to these regulations issued by the Board of Health shall comply with the provisions outlined in the State Environmental Code, Title 5.
4.0 GENERAL PROJECT PLANNING REQUIREMENTS Certain basic principles shall be considered early in the planning and design process in order to ensure that the SWWTP development process will meet all requirements.
4.1 ENVIRONMENTAL COMPATIBILITY
The plans for the proposed system or facility shall take into account all aspects of public health and environmental quality protection. Efforts shall be taken to preserve water supply, private property, wetlands, wildlife habitat, recreational sites, historic sites and natural beauty.The design shall be prepared so as to have the least possible adverse impact on the public health and the environment.
The project proposal shall include evidence that the wastewater system or facility will result in the least adverse impact on the public health or the environment as compared with other possible wastewater management alternatives
4.2 GENERAL DISCHARGE AND TREATMENT REQUIREMENTS
No discharge from a SWWTP shall result in degradation of ground or surface waters in a manner inconsistent with their proposed use. There shall be compliance with all applicable
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Town of Sherborn - Board of Health Regulations
water quality standards. The existing characteristics of the receiving waters must be considered to ensure compliance. There shall be no discharge into any wetland, stagnant waters, lakes or streams.
4.3 HYDROGEOLOGICAL INVESTIGATION
The applicant shall submit a hydrogeological survey report, prepared by a qualified geotechnical engineer or hydrogeologist, to show the impact of the subsurface discharge of the SWWTP on ground water. The report shall include a determination of the flow direction, contaminant levels, extent of wastewater discharge plume, ground and surface waters affected, and any interaction with water supply, public or private. This analysis shall be performed for the SWWTP design plan and also for any other viable wastewater treatment or disposal strategy for the project to be served.4.4 WETLANDS AND FLOOD PLAINS
No portion of the SWWTP shall be within 100 feet of wetlands or the "100 year" Flood Plain.
No portion of the subsurface disposal works for a SWWTP shall be located less than 200 feet from a wetland or the 100 year "Flood Plain". No component of the treatment plant, except for underground piping, shall be constructed less than two (2) feet above the high water level in any area subject to flooding. Such distances are considered "minimum" and may be increased by the Board of Health if site specific conditions warrant.
4.5 GENERAL SITING AND DESIGN REQUIREMENTS
The SWWTP design shall include attenuation of odor or noise problems, and shall satisfactorily address the general aesthetic appearance, to both protect the operator and to satisfy neighborhood environmental requirements.4.5.1 DISTANCES
No portion of the SWWTP shall be located less than the following distances stated to the components listed as follows:
MIDDLE ACCEPTABLE SEPARATION DISTANCES IN FEET
Component
MainPlant
BuildingsPumping
StationSubsurface
TankLeaching
areaSewer or
Force
Well *
Water supply line
Dwelling unit
Subsurface Drain
Property Boundary
Surface Water *
Wetland *
100
-
100
-
150
100
100
100
10
50
25
50
100
100
100
10
50
25
50
100
100
400
25
100
50 *
100
200
200
50
10
-
5
10
50
50
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Town of Sherborn - Board of Health Regulations
*This distance may be required to be greater if the hydrogeological evaluation indicates that contamination will occur at the stated distance.
4.6 ULTIMATE DISPOSAL OF SLUDGE AND SOLIDS
Provision for final or ultimate disposal of sludge and solids shall be clearly indicated and established. The estimated quantity must be stated. If sludge and solids are to be disposed of off-site, the final destination must be established prior to the issuance of any permit. The applicant must demonstrate, to the satisfaction of the Board of Health, that the destination for the sludge and solids is in compliance with all applicable federal, state and local regulations and also that it will reliably be available for such purpose for the length of time that its use is required for the SWWTP.If disposal is to be on-site, it must comply with the terms of the section above "General Discharge and Treatment Requirements".
4.7 TREATMENT PLANT RELIABILITY
The SWWTP shall be planned and designed so as to provide for maximum reliability at all times. The facility shall be capable of operating satisfactorily during power failures, flooding, peak loads, equipment failure and maintenance shutdowns. Such reliability shall be obtained through the use of various design techniques which will result in a facility which is virtually "Fail-Safe".Multiple units or dual compartments with unit drains shall be provided for all processes, including disinfection facilities, so that draining, cleaning, repairing or replacing and other maintenance can be provided without omitting any treatment processes.
4.8 BY-PASSES AND OVERFLOWS
No by-passes, either upstream of or at the SWWTP shall be permitted.4.9 DISINFECTION
Disinfection of the SWWTP effluent by ultraviolet irradiation or ozonation shall be required.
5.0 SUBSURFACE DISPOSAL FACILITIES
5.1 GROUND WATER
The bottom interface of any subsurface disposal or leaching facilities shall be located a minimum of five (5) feet above the MAXIMUM ELEVATION OF THE GROUND WATER OR SATURATED SOIL ZONE. This elevation shall include consideration of the mounding effect of the ground water caused by the discharge of the SWWTP effluent. Such analysis shall he calculated using generally acceptable analytical or numerical methods. When geologic conditions permit, the "Hantush" formula and procedure may be used. When the assumptions of that procedure cannot be met to derive a reliable result, it shall be required to utilize such method as finite difference equations for ground water flow and elevation.5.2 DISTANCE TO BEDROCK
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Town of Sherborn - Board of Health Regulations
The bottom interface of any subsurface disposal or leaching facilities shall be located a minimum of ten (10) feet above the elevation of bedrock or impervious soil layer. Impervious soil shall be defined as having a percolation rate of greater than twenty (20) minutes per inch.
5.3 THICKNESS OF PERMEABLE SOIL
A depth of at least five (5) feet of naturally occurring permeable soil shall be maintained below the bottom of the leaching area. To be considered permeable, the soil shall have a percolation rate of twenty (20) minutes per inch or less.
6.0 SEWERS - The lateral sewer system serving the SWWTP shall be of a design and construction in accordance with Water Pollution Control Federation Manual of Practice #9. Adequate capacity shall be provided for peak flow rates and shall provide for a cleansing velocity of at least two (2) feet per second at 75 percent of the estimated peak discharge. For low service connection areas, peak flow rate shall be calculated by the fixture unit method as described in MOP #9. The minimum pipe size allowed shall be eight (8) inches in diameter.
7.0 GROUND WATER MONITORING
7.1 INSTALLATION
The permittee shall install, at a minimum, ground water monitoring wells in accordance with the following:One up-grade cluster of three monitoring wells
Two down-gradient clusters of three monitoring wells
One monitoring well for ground water level only near the center of the leaching works
Screen depths for the cluster wells shall be set at elevations such that at least two screen depths will yield samples at time of seasonal low ground water (e.g. September sampling period)
Such locations shall be as approved by the Board of Health and as indicated appropriate from the results of the hydrogeological investigation. Monitor wells shall be installed and in place prior to issuance of the Certificate of Compliance and Operations Permit.
7.2 GROUND WATER ELEVATION
The permittee shall determine and provide the Board of Health with elevations of the water table to the nearest one-hundredth of a foot in all monitor wells on a monthly basis.
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Town of Sherborn - Board of Health Regulations
8.0 EFFLUENT LIMITS AND TESTING REQUIREMENTS
Effluent limitations shall be as
required by DEP (formerly DEQE) regulations for Class I and Class II ground
waters. All ground waters are considered to be in this classification unless
proved to be otherwise following procedures set forth by DEP (formerly DEQE).
8.1 WASTEWATER
8.1.1 TREATMENT PLANT INFLUENT
The influent to the treatment plant shall be sampled and tested weekly for 5-Day Biochemical Oxygen Demand (B.O.D.) and Total Suspended Solids (T.S.S.) and the results sent to the Board of Health on a quarterly basis.8.1.2 TREATMENT PLANT EFFLUENT
The effluent from the treatment plant shall be sampled and tested as follows:
DAILY
WEEKLY
MONTHLY
SEMI-
ANNUALLYFlow
Specific Conductance
pH
5-day Biochemical Oxygen Demand (B.O.D.)
Total Suspended Solids (T.S.S.)
Coliform Bacteria
Fecal Coliform bacteria
Total Kjeldahl Nitrogen
Ammonia Nitrogen
Nitrate Nitrogen
Total Dissolved Solids
Oil and Grease
Volatile Organic Compounds (USEPA Procedure #624)
ANNUALLY Arsenic
Barium
Cadmium
Chromium
Fluoride
LeadCopper
Zinc
Mercury
Total Trihalomethanes
Selenium
Silver5-YEARS Pesticides
RadioactivityAll sampling and analyses, except for the daily and weekly frequency tests which will commence at the time of plant start-up, shall be performed initially at 60 days after plant start-up
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Town of Sherborn - Board of Health Regulations
and at the stated frequency thereafter, and the results sent to the Board of Health on a quarterly basis.
8.2 GROUND WATER MONITOR WELLS
MONITOR WELL TESTING in the up-gradient and down-gradient wells shall be performed semi-annually in the months of April and September for all parameters designated above as semi-annually or more often. Testing for other parameters shall be at the stated frequency, either annually or every 5 years during the month of April.
On an annual basis, the Board of Health, either on its own motion or upon written request from the permittee, may review the sampling frequency and the tested parameters and may modify either or both if it deems it necessary.
9.0 OPERATION
9.1 OPERATOR
A Certified Waste Water Treatment Plant Operator having the Grade appropriate for the plant as determined by the regulations of the Board of Certification of Operators of Waste Water Treatment Facilities shall be retained by the permittee. Such operator shall spend a minimum of three (3) hours per day at the plant. When conditions warrant, as may he determined by the Board of Health, additional hours shall be required. Such operator shall be designated the Chief Operator and shall be responsible for the operation of the SWWTP.9.2 BACK-UP OPERATOR
A second Certified Waste Water Treatment Plant Operator, having the same grade as the Chief Operator shall be available in the absence of the Chief Operator.9.3 OPERATIONAL GUARANTEE
Prior to the issuance of the Certificate of Compliance and Operations Permit, the permittee shall provide security in an amount specified by the Board of Health to guarantee the operation of the SWWTP for a period of at least one (1) year. The security shall provide for salaries, operational costs and cost for immediate replacement, if necessary, of a major unit operation of the plant, or in the event of plant failure to operate, an amount sufficient to cover the costs of hauling 100% of the waste water to another facility for disposal for a one (1) year period.
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V
WATER TESTING REQUIREMENTS
FOR FOOD ESTABLISHMENT PERMITS
No Food Establishment Permit will be granted without prior submission to the Board of Health of the results of the analysis of the well water supply. The well water shall be tested for chemical, physical, and bacteriological characteristics which are required by the Board of Health.
Test samples shall be taken within the sixty (60) day period preceding the issuance off the permit which is issued on January 1 for the calendar year. Testing shall be by a Massachusetts Certified Laboratory. The quality of the water shall comply with the requirements of the Board of Health.
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Town of Sherborn - Board of Health Regulations
VI
TOBACCO CONTROL REGULATIONS
1.0 PURPOSE AND AUTHORITY
The Sherborn Board of Health finds that tobacco use by minors and involuntary exposure to environmental tobacco smoke (ETS) poses a severe health risk. Accordingly, the purpose of these regulations are to implement a strict and enforceable system to prevent illegal sales of tobacco to minors and to minimize exposure of ETS in public places.
1.1 YOUTH AT RISK
The Massachusetts Department of Public Health has estimated
that 90% of all smokers began smoking by age 19, and 60% started before age 14.
Public health officials have recognized that one of the most effective means of
preventing adolescents from using tobacco is to eliminate their access to
tobacco products. Several studies have shown that store clerks in the vast
majority of retail outlets commonly disregard the law against selling tobacco to
minors. Vending machines are another important source of access to tobacco by
children. A study conducted by the National Automatic Merchandising Association
found that 24% of persons 13 to 17 years of age who smoke reported that they
purchase cigarettes from vending machines "often" or
"occasionally". Even more striking, the study found that 13-year-olds
were 11 times more likely than the 17-year-olds to say they "often"
buy tobacco from vending machines (22% vs. 2%).
1.2 ENVIRONMENTAL TOBACCO SMOKE (ETS)
In 1993, the Environmental Protection
Agency classified ETS as a Class A carcinogen (a chemical that causes cancer).
Each year 3000 non-smoking people in the United States die prematurely from lung
cancer. ETS has a particularly harmful effect on people