New sanitary sewers and all extensions to sanitary sewers owned
and operated by the Town of Sullivan, which contribute to the Village
of Sylvan Beach Sewage Treatment Plant and the Village of Chittenango
Sewage Treatment Plant, shall be designed by a professional engineer
licensed to practice sewer design in New York State, in accordance
with the most recent Recommended Standards for Sewage Works, as adopted
by the Great Lakes - Upper Mississippi River Board of State Sanitary
Engineers (Ten State Standards), and in strict conformance with all
requirements of the NYSDEC Design Standards for Intermediate-Sized
Wastewater Treatment Systems, as required. Plans and specifications
shall be submitted to and written approval shall be obtained from
the Superintendent, the Madison County Health Department and the NYSDEC
before initiating any construction. The design shall anticipate and
allow for flows from all possible future extensions or developments
within the immediate drainage area.
When a property owner, builder or developer proposes to construct sanitary sewers or extensions to sanitary sewers in an area proposed for subdivision or other development, the plans, specifications and method of installation shall be subject to the approval of the Town of Sullivan Planning Board and Town Board and the Madison County Health Department, or NYSDEC, in accordance with §
206-44. Said property owner, builder or developer shall pay for the entire installation, including a proportionate share of the treatment plant, intercepting or trunk sewers, pumping stations, force mains and all other expenses incidental thereto. Each street lateral shall be installed and inspected pursuant to Article
V, and inspection fees shall be paid by the applicant prior to initiating construction. Design and installation of sewers shall be as specified in §§
206-47 through
206-51, and in conformance with Paragraphs 3 through 6 of ASTM Specification C-12. The installation of the sewer shall be subject to periodic inspection by the Superintendent, without prior notice. The Superintendent shall determine whether the work is proceeding in accordance with the approved plans and specifications, and whether the completed work will conform with the approved plans and specifications. The sewer, as constructed, must pass the infiltration test (or the exfiltration test, with prior approval), required in §
206-52, before any building lateral is connected thereto. The Superintendent shall be notified by the contractor 30 days in advance of the start of any construction actions so that such inspection frequencies and procedures as may be necessary or required may be established. No new sanitary sewers will be accepted by the Town until such construction inspections have been made so as to assure the Town of compliance with this chapter and any amendments or additions thereto. The Superintendent has the authority to require such excavation as necessary to inspect any installed facilities if the facilities were covered or otherwise backfilled before they were inspected so as to permit inspection of the construction. The Superintendent shall report all findings of inspections and tests to the Town Board.
Plans, specifications and methods of installation shall conform to the requirements of this article. Components and materials of wastewater facilities not covered in this chapter shall be designed in accordance with §
206-44 and shall be clearly shown and detailed on the plans and specifications submitted for approval. When requested, the applicant shall submit, to the Superintendent and to the Madison County Health Department, all design calculations and other pertinent data to supplement review of the plans and specifications. Results of manufacturer's tests on each lot of pipe delivered to the job site shall also be furnished upon request.
All gravity sanitary sewers or extensions to sanitary sewers,
including manholes, shall satisfy requirements of a final infiltration
test before they will be approved and wastewater flow permitted by
the Superintendent and applicable district. The infiltration rate
shall not exceed 25 gallons per 24 hours per mile per nominal diameter
in inches. An exfiltration test may be substituted for the infiltration
test; the same rate shall not be exceeded. The exfiltration test shall
be performed by the applicant, under the supervision of the Superintendent,
who shall have the responsibility for making proper and accurate measurements
required. The exfiltration test consists of filling the pipe with
water to provide a head of at least five feet above the top of the
pipe or five feet above groundwater, whichever is higher, at the highest
point under test, and then measuring the loss of water, from the pipe
section under test, by the amount of water which must be added to
maintain the original level. In this test, the test section must remain
filled with water for at least 24 hours prior to taking any measurements.
Exfiltration shall be measured by the drop of water level in a standpipe
with a closed bottom end or in one of the sewer manholes serving the
test section. When a standpipe and plug arrangement is used in the
upper manhole in the test section, there shall be some positive method
for releasing entrapped air prior to taking any measurements.
The test section shall be as ordered or as approved, but in
no event longer than 1,000 feet. In the case of sewers laid on steep
grades, the test length may be limited by the maximum allowable internal
pressure on the pipe and joints at the lower end of the test section.
For purposes of determining the leakage rate of the test section,
manholes shall be considered as sections of forty-eight-inch diameter
pipe, five feet long. The maximum allowable leakage rate for such
a section is 1.1 gallons per 24 hours. If leakage exceeds the allowable
rate, then necessary repairs or replacements shall be made and the
section retested.
The test period, during which the test measurements are taken,
shall not be less than two hours.
Prior to testing, the section shall be lamped. Any joint out
of straight alignment shall be realigned.
Also prior to testing, all plastic pipes in the test section,
shall be tested for deflection. Deflection testing shall involve the
pulling of a ball, whose diameter is 95% of the pipe inside diameter,
through the pipe. Any joint with a deflection greater than 5% shall
be replaced. The test section shall be flushed just prior to deflection
testing.
All sanitary sewers and extensions to sanitary sewers constructed
at the owner's expense, after final approval and acceptance by
the Superintendent and concurrence by the Town of Sullivan Town Board,
respectively, shall become the property of the Town of Sullivan and
shall thereafter be operated and maintained by the Town. Said sewers,
after their acceptance by the Town, shall be guaranteed against defects
in materials or workmanship for one year, by the owner. The guarantee
shall be in such form and contain such provisions as deemed necessary
by the Town, secured by a surety bond or such other security as the
Town Board may approve.
When used in this article, any and all design, building and
construction requirements, specifications and materials or otherwise
shall mean the most up to date version of those requirements, specifications
and materials, as amended.