When a property owner, builder, or developer proposes to construct sanitary sewers or extensions to sanitary sewers in an area proposed for subdivision, the plans, specifications, and method of installation shall be subject to the approval of the Director, and the Orange County Health Department, in accordance with §
445-29. Said property owner, builder, or developer shall pay for the entire installation, including a proportionate share of the intercepting or trunk sewers, and all other City of Port Jervis expenses incidental thereto. The owner, builder or developer shall prepare an engineering study as prepared by a New York State-licensed engineer delineating that downstream facilities are adequate for the increased tributary flows. Each street lateral shall be installed and inspected pursuant to Article
VI. The applicant shall pay the inspection fees prior to initiating construction. Design and installation of sewers shall be as specified in §§
445-32 through
445-35 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 Director, without prior notice, at the expense of the property owner. The Director shall determine whether the work is proceeding in accordance with the approved plans and specifications and whether the completed work will conform to the approved plans and specifications. The sewer, as constructed, between the house connection and cleanout must pass the lower pressure air test required in §§
445-37 through
445-41 before any building lateral is connected thereto. Sections that cannot be tested must be visually observed by the Director. The Director shall be notified 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 City of Port Jervis Common Council until such construction inspections have been made so as to assure the City of Port Jervis Common Council of compliance with this chapter and any amendments or additions thereto. The Director 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 Director shall report all findings of inspections and tests to the City of Port Jervis Common Council.
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, such as pumping stations,
lift stations, or force mains shall be designed in accordance with
Section 501, and shall be clearly shown and detailed on the plans
and specifications submitted for approval. Force main details are
covered in Section 506. When requested, the applicant shall submit,
to the Director and to the 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.
Sewer pipe material shall be:
A. Cast-iron pipe: extra heavy.
(1) Pipe, fittings, and specials shall conform to the requirements of
ASTM Specification A-74 or ANSI A-21.11.
(2) Gaskets shall conform to ASTM Specification C-564.
B. Polyvinyl chloride (PVC) pipe: SDR 35.
(1) Pipe shall be made from Class 12454-B materials or better in accordance
with ANSI/ASTM Specification D-1784.
(2) Pipe and accessories shall conform to the requirements of the following,
with a minimum pipe stiffness of 46.
(3) Pounds per square inch (psi) at a maximum deflection of 5%.
(4) ANSI/ASTM D 3034 (four inches to 15 inches).
(5) ASTM F 679 Type I (18 inches to 27 inches).
C. Ductile iron pipe.
(1) Pipe, fittings, and specials shall be manufactured in accordance
with ASTM Specification A-746.
(2) Pipe shall have a minimum thickness of Class 51.
(3) Fittings shall conform to ANSI Specification A-21.11 and have a minimum
pressure class rating of 150 psi.
(4) All pipe and fittings shall be cement mortar lined in accordance
with ANSI Specification A-21.4 at twice the specified thickness and
have an internal and external bituminous seal coating.
(5) Closure pieces shall be jointed by means of a mechanical coupling
of the cast sleeve type.
D. Other pipe materials. Other pipe materials require prior written
approval of the Director before being installed.
(1) The minimum internal pipe diameter shall be eight inches for gravity
sewers and three inches for low-pressure sewers.
(2) Joints for the selected pipe shall be designed and manufactured such
that O-ring gaskets of the "snap-on" type are used.
(3) Gaskets shall be continuous, solid, natural or synthetic rubber and shall provide a positive compression seal in the assembled joint, such that the requirements of §§
445-37 through
445-41 are met.
(4) Joint preparation and assembly shall be in accordance with the manufacturer's
recommendations.
(5) Wye branch fittings or saddle connections, as approved by the Director, shall be installed, for connection of street laterals, in accordance with §§
445-55 through
445-57.
The test section shall be from manhole structure to manhole
structure. All connections and service laterals are to be plugged
and braced adequately to withstand the test pressure before starting
the test.
When approved by the Director, pipe lamping may be substituted for deflection testing as provided in §
445-40. Prior to testing, the section shall be lamped. Any length of pipe out of straight alignment shall be realigned.
Also prior to testing, all plastic pipe, in the test section,
shall be tested for deflection. Deflection testing shall involve the
pulling of a rigid ball or mandrel, whose diameter is 95% of the pipe
inside diameter, through the pipe. Any length of pipe with a deflection
greater than 5% shall be replaced. The test section shall be flushed
just prior to deflection testing. The test shall not be performed
with a mechanical pulling device.
Force mains serving sewage lifting devices, such as grinder pumps and pump stations, shall be designed in accordance with §
445-29. Additional design requirements are:
A. Force main pipe material shall be:
(1) Ductile iron pipe.
(a)
Pipe shall conform to ANSI A21.51 and ASTM 746-03. The minimum
wall thickness shall be Class 52 (ANSI A21.50). The pipe shall be
clearly marked with either "D" or "DUCTILE." Fittings shall conform
to ANSI A21.10.
(b)
Pipe and fittings shall be furnished with push-on joints conforming
to ANSI A21.11.
(c)
Pipe and fittings shall be cement mortar lined and have an internal
and external bituminous seal coating.
(2) Polyvinyl chloride (PVC) plastic pipe. Pipe shall conform to ASTM
D2241. Materials used in the manufacture of PVC pipe shall meet ASTM
C1784. The minimum wall thickness shall be SDR-21. Fittings shall
conform to ASTM D2241. Joints and gaskets shall conform to ASTM D2241,
D1869, and F477.
(3) Other pipe materials. Other pipe materials require prior written
approval of the Director before being installed.
B. Trenching, bedding, and backfilling shall be in accordance with §
445-34.
C. Joint preparation and assembly shall be in accordance with the manufacturer's
written instructions.
D. Anchorages, concrete blocking, and/or mechanical restraint shall
be provided when there is a change of direction of 7 1/2°
or greater. All restraints shall be as designed by a professional
engineer registered in New York State.
E. Drain valves shall be placed at low points.
F. Automatic air relief valves shall be placed at high points.
G. Air relief and drain valves shall be suitably protected from freezing.
H. When the daily average design detention time, in the force main,
exceeds 20 minutes, the manhole and sewer line receiving the force
main discharge or the sewage shall be treated so that corrosion of
the manhole and the exiting line are prevented. The corrosion is caused
by sulfuric acid biochemically produced from hydrogen sulfide anaerobically
produced in the force main.
I. The force main shall terminate, in the receiving manhole, at a PVC
plastic sewer pipe T. The vertical arms of the T shall be twice the
diameter of the force main. The upper arm shall be at least four feet
long; the lower arm shall terminate in a PVC plastic sewer pipe ninety-degree
elbow in a flow channel directed to the manhole exit pipe. The T and
its arms shall be securely fastened to the inside surface of the manhole
wall using corrosion-resistant anchors.
All force mains shall be subjected to hydrostatic pressure of
150% of the normal operating pressure. The duration of the test, at
pressure, shall be at least two hours. Before conducting the test,
the pipe shall be filled with water, and all air shall be expelled.
During the test, water shall be added, as needed, to maintain the
test pressure. The amount of water added shall be recorded so as to
calculate leakage. Leakage shall not exceed 25 gallons per day per
mile per inch nominal pipe diameter. During the test, the owner and
the Director shall walk the route of the force main and examine the
exposed pipe and the ground covering any backfilled pipe to discover
leaks. Leakage in excess of that specified above shall be corrected
with new material at the owner's expense and the test repeated. Any
observered leaks shall be repaired at the owner's expense. Each test
section length shall be as approved by the Director, but in no event
longer than 1,000 feet.
All sanitary sewers and extensions to sanitary sewers constructed
at the applicant's expense, after final approval and acceptance by
the Director, and concurrence by the City of Port Jervis Common Council,
shall become the property of the City of Port Jervis and shall thereafter
be operated and maintained by the City of Port Jervis. No sanitary
sewer shall be accepted by the City of Port Jervis until four copies
of as-built drawings have been so filed with the Director and the
Director has approved the submitted drawings. Said sewers, after their
acceptance by the City of Port Jervis, shall be guaranteed against
defects in materials or workmanship for one year, by the applicant.
The guarantee shall be in such form and contain such provision as
deemed necessary by the City of Port Jervis Common Council, secured
by a surety bond or such other security as the City of Port Jervis
Common Council may approve.