The design, material and construction methods shall conform to the applicable sections of the current editions and subsequent revisions of the following documents.
A. 
Recommended standards for wastewater facilities. Policies for the Design, Review, and Approval of Plans, and Specifications for Wastewater Collection and Treatment Facilities, 2014 Edition — A Report of the Wastewater Committee of the Great Lakes — Upper Mississippi River Board of State and Provincial Public Health and Environmental Managers.
B. 
New York State Design Standards for Intermediate Sized Wastewater Treatment Systems. March 5, 2014. New York State Department of Environmental Conservation, Division of Water.
C. 
Uni-Bell UNI-B-6-98, "Recommended Practice for Low-Pressure Air Testing of Installed Sewer Pipe," July 1998.
D. 
Rural Sewage Disposal, Rensselaer County Department of Health.
E. 
Articles II and IX, Sanitary Code of Rensselaer County.
F. 
Part 75-A, New York State Department of Health.
G. 
Design and Construction of Sanitary and Storm Sewers, Manual of Practice No. 8 Water Pollution Control Federation.
A. 
Public sewer systems.
(1) 
Sites within or adjacent to an existing or proposed future sewer district as shown on the Official Map or within 2,000 feet of public sewers, or at the discretion of the Planning Board, shall be served by public sewers.
(2) 
The applicant shall pay for the cost of extending the sewer district and facilities to connect to the existing system.
(3) 
The extension of facilities can be waived in specific instances where economic hardship and suitable alternative methods of sewage disposal can be demonstrated.
B. 
Community sewer system.
(1) 
Community wastewater treatment and collection systems shall be provided for all sites with a design wastewater flow of greater than 20,000 gallons per day within the direct recharge areas of the Schodack Terrace Aquifer or the Valatie Kill Aquifer as mapped in Town of Schodack Chapter 233, Water Quality Control, and for all sites serving 50 or more housing units.
(2) 
Wastewater treatment systems shall provide treatment to a level as determined by the New York State Department of Environmental Conservation.
(3) 
Upstream and downstream monitoring wells shall be provided for subsurface discharge systems with testing incorporated into the State Pollutant Discharge Elimination System permit.
(4) 
All copies of laboratory test results shall be provided annually to the Town for non-municipal facilities.
C. 
On-site wastewater treatment systems.
(1) 
Where public sewers or community systems are not feasible, on-site wastewater systems will be considered, provided that suitable site conditions exist.
(2) 
System designs shall be submitted to the Rensselaer County Department of Health for approval.
(3) 
The adequacy of existing systems shall be verified prior to any expansion of site facilities or changes in use.
(4) 
Dry sewers shall be required on all major subdivisions, unless waived by the Planning Board via resolution.
(5) 
Appeal.
(a) 
Any person or entity aggrieved by a determination of the Planning Board regarding the waiver of the dry sewer requirement under this chapter may appeal the Planning Board's decision to the Town Board for further consideration by filing of a notice of appeal with the Town Clerk within 30 days of the filing of the decision of the Planning Board denying such a waiver. The Town Board shall consider whether the applicant has suffered an undue hardship as a result of the denial of a waiver and may exercise its discretion using all relevant factors.
(b) 
An appeal to the Town Board must be made within the thirty-day period following the filing of Planning Board decisions denying a waiver, except that any application for a waiver which has been decided in the 12 months prior to the date of this subsection may be taken by filing a notice of appeal with the Town Clerk within the thirty-day period following the effective date of this subsection.
D. 
Discharges other than domestic wastewater. Industrial and nondomestic wastewater discharges will be allowed only after careful review on a case-by-case basis. Pretreatment may be required prior to connection to any public sewer systems.
E. 
Gravity collection systems. Gravity sewer systems shall be provided unless not feasible.
F. 
Pump stations and force mains.
(1) 
Central pump stations and force mains shall be provided where gravity systems are not feasible.
(2) 
Pump stations shall be designed in accordance with the Recommended Standards for Sewage Works, including provisions for emergency power.
(3) 
A remote alarm system shall be provided to alert maintenance people of system failure.
G. 
Ownership, operation and maintenance.
(1) 
The Town shall require that all community sewer systems be owned and operated by the Town. The applicant must make provisions to own and operate the system during the one-year waiting period for acceptance as discussed in § 188-30, Acceptance of improvements.
(2) 
For all wastewater systems, pump stations and nonresidential systems, operation and maintenance plans shall be submitted, including:
(a) 
Detailed as-built drawings showing all deviations from the design plans.
(b) 
Equipment lists.
(c) 
Instruction manuals.
(d) 
Spare parts.
(e) 
Regulatory and reporting requirements.
(f) 
Emergency plans.
(g) 
Operation and replacement cost estimates.
(3) 
Where facilities are to be dedicated to or owned by the Town of Schodack, such dedication should be accompanied by the following:
(a) 
Two-year cash performance bond in the amount of 20% of the municipally constructed value of the system as approved by the Planning Board Engineer which will commence upon the date of acceptance.
(b) 
Warranties for each process equipment item should commence upon the date of dedication/acceptance.
(4) 
The Town reserves the right to request equipment, materials and treatment processes that may exceed minimum requirements in order to:
(a) 
Meet Town standards or match other equipment/processes already in use by the Town;
(b) 
Increase operator safety;
(c) 
Increase ease of operation;
(d) 
Reduce operating costs including labor, energy, consumables, and residual disposal costs;
(e) 
Reduce maintenance costs;
(f) 
Extend the useful life of the equipment and facility;
(g) 
Provide a greater degree of protection to the aquifer and the environment;
(h) 
Reduce or mitigate impacts to neighbors such as odors, noise or visual impacts; and
(i) 
Conserve resources, including water consumption.
A. 
Sewer pipe shall be as follows:
(1) 
PVC SDR 35: ASTM D3034.
(2) 
As approved by the Planning Board Engineer.
B. 
Manholes shall be as follows:
(1) 
Precast concrete manhole: ASTM C478.
(2) 
Mortar, Type M: ASTM C270.
(3) 
Frames and covers: NYSDOT Section 715.
(4) 
Covers for sanitary sewer systems shall have the words "SANITARY SEWER" in bold letters cast on the cover.
C. 
Pump stations. Pump stations shall be wet-well-mounted pump stations as manufactured by Smith and Loveless or an approved equal.
D. 
Force mains shall be as follows:
(1) 
PVC SDR 21: D2241 for heads up to 90 feet.
(2) 
PVC SDR 26: ASTM D2241.
(3) 
PVC Schedule 40: ASTM D1785.
(4) 
As approved by the Planning Board Engineer.
A. 
Stakeout. Sewer systems shall be staked out prior to construction.
B. 
Pipe installation.
(1) 
Sewer pipe shall be installed to line and grade.
(2) 
Warning tape with stainless steel tracing wire shall be installed 12 inches above all pipe and terminated in accessible underground structures.
C. 
Testing.
(1) 
Pipe testing.
(a) 
Pipe shall be tested as follows:
[1] 
Deflection testing.
[2] 
Low-pressure air testing.
[3] 
Corroborative infiltration/exfiltration tests on the three sections with greatest air loss.
(b) 
These tests are to be performed and witnessed prior to connection between the house services and the system. Testing shall follow recommendations of Uni-Bell.
(c) 
Infiltration testing. Infiltration testing is considered an acceptable method of leakage test if the groundwater level is above the top of the pipe for the entire length being tested. A weir shall be installed in locations as directed by the Town Planning Board Engineer and will be used to measure the infiltration. The allowable infiltration shall not exceed 50 gallons per inch of internal pipe diameter per mile per twenty-four-hour day. The minimum length of testing shall be one hour.
(d) 
Exfiltration testing. Exfiltration testing will be acceptable only when the groundwater level is suitably low or in dry areas. Plugs, caps and branch connections must be secured against blowoff during leakage tests. The maximum allowable exfiltration for any section of pipe between manholes shall be measured and shall not exceed 20 gallons per inch of internal pipe diameter per mile per twenty-four-hour day. The owner/applicant shall provide water and measuring devices. During testing, the maximum internal pipe pressure at the lowest end shall not exceed 25 feet, and the internal head shall be two feet higher than the top of the pipe.
(e) 
Low-pressure air testing. All plugs, fittings, gauges and pumping systems required shall be provided by the owner/applicant. The pressure drop shall not exceed 0.5 pound per square inch from 3.5 pounds per square inch to 3.0 pounds per square inch in excess of the groundwater pressure above the top of the pipe. Testing shall conform to ASTM F-1417 for plastic pipe. For other materials, test procedures shall be approved by the Town.
[1] 
The duration of the testing shall be taken from Uni-Bell UNI-B-6-98 "Recommended Practice for Low-Pressure Air Testing of Installed Sewer Pipe," July 1998, Table II, Minimum Specified Time For a 0.5 psig Pressure Drop for Size and Length of Pipe Indicated for Q=0.0015.[1]
[1]
Editor's Note: Table 5-403.1 is included as an attachment to this chapter.
(f) 
Deflection testing. Sewer lines shall be tested for straightness with a maximum allowable deflection of 7 1/2%. Sections found to be questionable shall be tested by pulling an appropriately sized mandrel through the pipe.
(g) 
The owner/applicant shall furnish the correct mandrels for the pipe size being tested, as determined from Table 5-4.03.2. The owner/applicant shall be responsible for furnishing all necessary rope, labor, fittings, etc., in order to conduct the testing.
Table 5-4.03.2
Specified Mandrel Size for Pipe Diameter Indicated
Pipe Diameter
(inches)
Mandrel O.D.
(inches)
6
5.31
8
7.09
10
8.85
12
10.51
15
12.86
18
15.70
21
18.50
24
20.80
27
23.43
(h) 
Acceptance. Any section of the sewer system that does not comply with the requirements of the testing outlined above shall be repaired or replaced at the owner's/applicant's expense, to meet the requirements of the Town.
(2) 
All mechanical systems shall be tested to ensure proper operation within the design parameters prior to placing in service.