331 & 349 Hadenville Rd_PermitCity of Northampton
Department of Public Works
STORMWATER MANAGEMENT PERMIT
APPLICATION DECISION
Project I Site Name: Zoe Senior Retirement & Linda Manor Addition
Project Street or Location I Assessor ID: 331 & 349 Haydenville Rd I Map 06, Parcels 37, 39, 55
Applicant Name: J. Chakalos Investments, LLC
Applicant Address/Phone: 52 Overlook Dr, Windsor, CT 06095 I 860-688-8816
Application Submission Date:_1_2_/2_/2_0_1_1 ___________________ _
THE FOLLOWING ACTION BY THE NORTHAMPTON DEPARTMENT OF PUBLIC
WORKS HAS BEEN TAKEN ON THIS APPLICATION BASED ON INFORMATION
PRESENTED:
Disapproval of the Stormwater Management Permit Application based on a
determination within seven days of the receipt of the application that the
application is administratively incomplete (see attached documentation).
__ Approval of the Stormwater Management Permit Application.
_x_ Approval of the Stormwater Management Permit Application subject to any
conditions, modifications or restrictions required by the Department of
Public Works (see below)
__ Disapproval of the Stormwater Management Permit Application based upon
a determination that the proposed plan, as submitted, does not meet the
purposes set forth in the Northampton Stormwater Management.
Standard Permit Conditions:
1. All clearing, grading, drainage, construction, and development shall be conducted in
strict accordance with the following plans and information submitted with the application
and as amended by any conditions attached to this permit:
a. Zoe Senior Retirement Community Site Plan, Sheets T-1, C-1, C-2, C-3, C-4, C-
5, C-6, C-8, C-9, C-10 revision dated 1/27/2012, Sheet C-7 revision dated
31612012, stamped by Frank A. Demarinas, P .E., Sage Engineering &
Contracting, Inc.
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b. Addition to Linda Manor Site Plan, Sheets C-1 and C-2 revision dated
12/06/2011, Sheets T-1, C-3, C-4 and C-5 revision dated 1/27/2012, stamped by
Frank A. Demarinas, P.E., Sage Engineering & Contracting, Inc.
c. Site Evaluation Statement and Stormwater Management Report, Zoe Senior
Retirement Community and Addition to Linda Manor, Revised February 9, 2012,
prepared and stamped by Bryan Balicki, P .E., Sage Engineering & Contracting,
Inc.
d. Appendix B: Post Development Peak Flow Rate Calculations,, Zoe Senior
Retirement Community and Addition to Linda Manor, Revised 3/6/2012,
prepared and stamped by Bryan Balicki, P.E., Sage Engineering & Contracting,
Inc.
e. Pipe Sizing Worksheet for Existing DMH-2, Zoe Senior Living, dated 3/6/2012,
prepared and submitted by Bryan Balicki, P.E., Sage Engineering & Contracting,
Inc.
2. The Northampton Department of Public Works (DPW) or its authorized representative
shall be provided access to the property to conduct inspections before, during, and after
construction activities as necessary. The applicant shall arrange with the DPW to
schedule the following inspections: Initial Inspection, Erosion Control Inspection, Bury
Inspection, and Final Inspection. The applicant shall notify the DPW of the dates of
construction of subsurface infiltration or detention systems prior to start of construction
of such structures. The DPW may also conduct random inspections to ensure effective
control of erosion and sedimentation during all phases of construction.
3. At the completion of the work, including construction of stormwater management
facilities and landscaping, the applicant shall submit to the DPW as-built plans stamped
by a professional engineer of record in the Commonwealth of Massachusetts and a
statement from a professional engineer of record in the Commonwealth of Massachusetts
certifying that the materials and construction of the stormwater management system was
constructed in accordance with the approved plans and will function as designed. All
changes to the approved stormwater facilities shall be documented by a professional
engineer of record in the Commonwealth of Massachusetts and approved by the DPW
prior to submission of as-built plans and the certification statement described above.
4. Annual Reports that are stamped by a Registered Professional Engineer documenting
the actions completed as required by the Operation, Maintenance and Inspection
Agreement shall be submitted to the Northampton Department of Public Works by
October 1st of each year (see Specific Condition 1 below).
5. If construction of the proposed stormwater system has not started within five years of the
issue date of this permit, then the permit will expire and a new permit will be required.
Construction is defined as clearing, grading, excavation, filling, and installation of
drainage structures on the lots specified in this permit.
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Specific Permit Conditions:
1. Prior to issuance of a Building Permit, the applicant shall record an executed Stormwater
Operation, Maintenance, and Inspection Agreement that is binding on all subsequent
owners of land served by the private storm water management facility by recording it in
the land records of the Registry of Deeds. The maintenance schedule and responsibility
for maintenance of all components of the proposed stormwater management system must
be adequately specified in Attachment A to this Agreement. The draft Operation and
Maintenance Narrative submitted in the Site Evaluation Statement and Stormwater
Management Report, dated February 9, 2012 and cited above, must be revised to the
satisfaction of the Northampton DPW including but not limited to the following items:
additional inspection and maintenance of the proposed Stormceptor, clean out of catch
basins at least once per year, revision of inspection and maintenance of the infiltration
basin to define failure of the basin to function as designed and the procedures to correct
this problem. The DPW can provide additional guidance on required revisions to the
maintenance schedule. The final agreement shall be approved by the Northampton DPW
and signed by the owner and the Mayor of Northampton. The final agreement shall be
recorded at the Registry of Deeds at the owner's expense. Section 22-85 of the
Northampton Stormwater Management Ordinance provides additional guidance for the
requirements of this agreement.
2. This project will be required to submit one or more Notice of Intent (NOi) to the U.S.
EPA for coverage under the NPDES Stormwater Construction General Permit. A copy of
the final NOi and Stormwater Pollution Prevention Plan (SWPPP) shall be submitted to
the Northampton DPW for approval prior to the start of construction and prior to issuance
of a building permit.
3. Construction plans and specifications shall be submitted to the DPW prior to construction
for approval prior to all phases of construction.
4. The proposed stormwater management system is designed to mitigate peak stormwater
flows. If, after construction of the proposed system, the system is found to increase
stormwater flows to adjacent properties or roadways, the owner shall redesign and
reconstruct the drainage system to prevent any increased stormwater flows to adjacent
properties.
5. All detention basins, infiltration systems, grass swales, outlets, and other non-piped
components of the proposed storm water system shall be constructed as proposed and
stabilized prior to receiving drainage flows from the proposed development.
6. One sediment benchmark as discussed in the draft Operation and Maintenance Narrative
shall be installed in the Detention Basin to measure the level of sediment. A detail of the
sediment posts shall be submitted to the DPW for approval within 30 days of the issuance
of this permit. Construction Plans as referenced above shall include location and
specification of the sediment posts.
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7. Sheet C-10 of the Zoe Senior Retirement Plans shows a "New Inv. 469.68" at the end of
a proposed 24 inch HDPE from DMH-0.S. #2 to Beaver Brook. Within 30 days of the
issuance of this permit and concurrent with filing of required permits applications with
the Northampton Conservation Commission, the applicant must submit to the DPW
revised plans and details for approval specifying the design of the proposed new outfall.
8. Within 30 days of the issuance of this permit, the applicant must submit documentation to
the DPW that the area and size of stone for the proposed plunge pools as shown in Detail
7 /C-9 has been sized for velocity of flow to the proposed flared end outfalls to the
detention basin and to Beaver Brook.
9. Within 30 days of the issuance of this permit, the applicant must verify the flow path of
overflow stormwater from the proposed detention basin in the event of a blockage of the
proposed Drop Inlet located south of the existing entry drive to Linda Manor and confirm
that that the elevation of the proposed berm located west of the property of 339
Hadenville Road will maintain flow to the entry drive or across the entry drive and not to
adjacent properties.
10. The elevation of the seasonal high ground water elevation must be confirmed by a
Certified Soil Evaluator or Certified Professional Soil Scientist in the locations of the
proposed detention basin and the three proposed subsurface infiltration systems prior to
construction of these structures. The elevation of seasonal high ground water must be at
or below the elevation of the bottom of the detention basin and must be at least two feet
below the bottom elevation of the three infiltration systems. Prior to construction of the
detention basin and infiltration systems, a report shall be submitted to the DPW
documenting the elevation of seasonal high ground water and confirming the appropriate
separation to the drainage structures discussed above.
11. All catch basins shall have a hood and a minimum sump depth of 4 feet.
12. Sheet C-6 of the Zoe Senior Retirement Plans specifies an invert out for PR. SCMH-1 of
504.14. Drainage flows from this structure to the proposed detention basin through a
flared end section with an invert specified at 506 feet. The design of the drainage system
must be revised to have a positive slope to the detention basin. Within 30 days of the
issuance of this permit, plans must be revised to correct this error and submitted to the
DPW for approval.
g Board c/o Office of Planning and Development
Bui ng Department
~/'l/ l"L.
Date
Conservation Commission c/o Office of Planning and Development
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