HomeMy WebLinkAboutseptic - disapproval letter - Correspondence - 130 REA STREET 10/21/2019 LED '
North Andover Health Department
Community and Economic Development Division
October 21, 2019
Benjamin Osgood,P.E.
157 Bluff Street
Salem,NH 03079
Re: 130 Rea Street(Map 98A, Lot 9)
Dear Mr. Osgood:
The proposed wastewater system design plan for the above site dated September 9,2019 has
been reviewed. Unfortunately,the plan cannot be approved until the following items are
corrected. The specific section in Title 5: 310 CMR 15.000, or North Andover regulation that is
not met by this design follows each item where applicable.
1. A variance will need to be obtained to have a loading rate established without a
percolation rate
2. Variances need to show in writing their compliance with the standards at 310 CMR
15.410
3. The loading rate for soils with a percolation rate of up to 90 mpi is to be 0.15. That rate,
or less, should be used. 310 CMR 15.245(4)
4. Indicate who marked wetlands resources areas identified on the plan, state when they
were demarked, label them as such.
5. Examine the waterway located to the west of the subject site and determine of the stream
shown on GIS exists. Depict stream if it exists (NA 3.2)
6. The model number of the proposed secondary treatment unit needs to be specified(NA
3.2)
7. Notate the requirement for routine preventative maintenance of the secondary treatment
unit(NA 3.2)
8. Downhill slope"breakout"requirements are not met for the southwestern portion of the
soil absorption system 310 CMR 15.211
9. The requested Local Upgrade Approval for a design based on a sieve analysis is not
allowed to be issued. Provide a variance request to Title 5
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North Andover Health Department, Town Hall, 120 Main Street,
North Andover, MA 01845 Phone: 978.688.9540 Fax: 978.688. 9542
10. The requested Local Upgrade Approval for a design with a 2' reduction between the soil
absorption system and the estimated seasonal high ground water is not allowed to be
issued
11. The existing building sewer is proposed to be examined by the licensed system installer.
Provide information as to what is to be examined and how it is to be determined if the
pipe is acceptable or is to be replaced
12. Tank needs to have 6"stone base beneath it specified 310 CMR 15. 221 &228
13. The treatment tank is to be notated to be watertight 310 CMR 15.221
14. Pump chamber manhole cover is to be 24" or greater 310 CMR 15.231. Also, show it to
finished grade on the profile
15. Provide DEP Form 12 documenting the attempted percolation test 310 CMR 15.018
16. Label TP 1 and 2 on the plan 310 CMR 15.220
17. A loading rate of 0.20 gpd/sf cannot be used when a secondary treatment unit is proposed
with a requested reduction in size 310 CMR 15.242(b)
18.Pressure distribution guidelines for orifice spacing is not followed 310 CMR 15.254 (2).
Also,the drain back volume calculations do not appear correct,the placement of the
laterals and cleanouts on or under the chambers Is not depicted,and the method of
securing the laterals to the chambers is not provide
19. What appears to be a 5' overdig is not labeled
20. Inspection port not depicted on site plan. Also,the method for constructing this with the
distribution laterals should be depicted
21. Construction note 10 references components not provided on this design plan
22. Chamber specifications differ on sheet 1 and sheet 2
23. Provide greater detail on the end cleanouts and show them on the system profile
24. Indicate if the optional components indicted on the treatment system detail are to be
provided or not
25. Show the location of the proposed treatment system controller
26. The buoyancy calculations do not coincide with the tanks depicted in the system profile
27. Provide buoyancy calculations for the proposed secondary treatment unit
28. Since the system contains a secondary treatment unit the"Standard Conditions for
Secondary Treatment Units Approved for Remedial Use"will apply. Please provide the
following as required by the approval conditions
a) The record drawings must clearly indicate an area for the best feasible
replacement system that could be installed in the event that the proposed
Alternative Soil Absorption System fails or it is determined that it is not
capable of providing equivalent environmental protection
b) a certification, signed by the Owner of record for the property to be served by
the Technology, stating that the property Owner:
i. has been provided a copy of the Approval, the Owner's Manual,
and the Operation and Maintenance Manual, and the Owner
agrees to comply with all terms and conditions:
ii. has been informed of all the Owner's estimated costs associated
with the operation including, when applicable:power
consumption, maintenance, sampling, record keeping, reporting,
and equipment replacement;
iii. understands the requirement for a service contract;
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North Andover Health Department,Town Hall, 120 Main Street,
North Andover,MA 01845 Phone: 978.688.9540 Fax: 978.688. 9542
iv. agrees to fulfill his responsibilities to provide a Deed Notice as
required by 310 CMR 15.287(10 and the Approval);
v. agrees to fulfill his responsibilities to provide written notification
of the Approval to any new Owner, as required by 310 CMR
15.287(5);
vi. if the design does not provide for the use of garbage grinders, the
restriction is understood and accepted; and
vii. whether or not covered by a warranty, the System Owner
understands the requirement to repair, replace, modem or take any
other action as required by the Department or the local Approving
Authority, if the Department or the local Approving Authority
determines the Alternative System is not capable of meeting the
performance standards.
29.Provide a draft of the STU and pressure distribution system operation and maintenance
agreement, and a draft of the deed notice
30. Indicate the alternative design standards which are being sought pursuant to the Standard
Conditions for Secondary Treatment Units Approved for Remedial Use. Among these
could be the requested size reduction which accompanies use of plastic chambers and the
requested reduction in water table offset
31. Since the system is proposed as an alternative soil absorption system the"Standard
Conditions for Alternative Soil Absorption Systems with General Use Certification
and/or Approved for Remedial Use"will apply. Please provide the following as required
by the approval conditions
a) The record drawings, approved by the LAA, must clearly indicate an area for the
best feasible replacement system that could be installed in the event that the proposed
Alternative Soil Absorption System fails or it is determined that it is not capable of
providing equivalent environmental protection;
b) a certification, signed by the Owner of record for the property to be served by the
Technology, stating that the property Owner:
i. has been provided a copy of the Title 5 EA technology
Approval, the Owner's Manual, and the Operation and
Maintenance Manual, and the Owner agrees to comply with all
terms and conditions:
ii. ili if the design does not provide for the use of garbage
grinders, the restriction is understood and accepted; and
iii. iv whether or not covered by a warranty, the System Owner
understands the requirement to repair, replace, modem or take
any other action as required by the Department or the LAA, if
the Department or the LAA determines the System to be failing
to protect public health and safety and the environment, as
defined in 310 CMR 15.303.
32. The Standard Conditions for Alternative Soil Absorption Systems with General Use
Certification and/or Approved for Remedial Use allows use of plastic chambers for a
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North Andover Health Department,Town Hall, 120 Main Street,
North Andover,MA 01845 Phone: 978.688.9540 Fax: 978.688. 9542
percolation rate of up to 90 mpi. Redesign the soil absorption system, or request variance
relief
33. Provide copies of the general policies for secondary treatment units and for alternative
leaching fields, and also provide copies of the specific brand approval letters
34. Where variances to Title 5 or the North Andover Onsite Wastewater Regulations are
being sought,provide written information to demonstrate compliance with the variance
standards in the respective regulations
Please feel free to contact the office or Mill River Consulting at 978-282-0014 with any
questions you may have. We look forward to working with you to obtain a wastewater treatment
and dispersal system which will be in compliance with all regulations and assure protection of
public health and the environment of North Andover.
Sincerely,
I� w
rian I aGrasse, CEHT
Director of Public Health
cc: Owner
File
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North Andover Health Department,Town Hall, 120 Main Street,
North Andover,MA 01845 Phone: 978.688.9540 Fax: 978.688. 9542
