Department of Public Works - Division of Pure Waters
347 Old Niskayuna Road
Latham, New York 12110
The Pure Waters Department maintains and operates the sanitary sewer collection systems, including 400+ miles of pipe and 8000+ manholes, and oversees the treatment of 3.5 million gallons per day of sanitary waste at Mohawk View Water Pollution Control Plant, Onderdonk Avenue. The Department also reviews and issues sanitary sewer connection permits for commercial and residential construction and inspects pipe installation.
Service area includes the Town of Colonie, but not the villages (85% of developed areas have sewer service).
Sanitary sewer cost is billed with the January Town/County
tax bill. These charges are shown as units and points with single-family
homes paying a flat charge, and commercial, industrial land, and multi-family
paying on a usage formula. All new construction of homes and businesses
have to extend the public sewer system at no expense to the taxpayers.
Note: For continuous or intermittent flow into a drain, as from a pump, ejector, air conditioning equipment, or similar equipment, a fixture unit value of 2 shall be assigned for each gallon per minute of flow at rated capacity.
1. A duplex pump system must be designed in accordance
with the manufacturers recommendations. Request for a single pump installation
must be in writing to the department for review and approval.
6. Where bends are required, PVC Schedule 80 socket
type bends are to be used. Bends should be glued to barrel of pipe outside
of trench. 90° Bends are not acceptable. Two 45° bends with 2
foot nipple are to be used to make 90° turn. For pipe larger than
2", mechanical joint DIP or rubber gasketed PVC fittings should be
11. Prior to final
approval of the grinder pump installation, the following documentation
must be submitted to the Pure Waters Office:
1. Plans - The
following plans need to be submitted for review prior to issuance of a
sanitary sewer connection permit:
2. Sewer Elevations (USGS) - The site plan should show proposed finish floor elevation, proposed invert of building drain where it exits the foundation, manhole inverts and the invert of the existing sanitary sewer at the proposed connection point.
3. Materials - The site plan should show type, size and class of pipe to be used for the building sewer. Exterior grease interceptors, manholes, intermediate cleanouts and grinder pumps should be shown on site plan.
4. Sewer Lateral Profile - Proposed sanitary sewer lateral should be shown in profile. The profile should include proposed invert elevation at foundation and at connection to existing sewer; pipe size, type, class and percent of grade; any crossing utility; existing grade and proposed finish grade; any intermediate cleanouts.
5. Sewer Lateral Routing - The site plan should show the proposed routing of the building lateral. All proposed connections to existing manholes, bends, intermediate cleanouts, manholes, existing utilities, significant trees, fences, signs, etc. should be shown on the plan and labeled accordingly.
6. Sewer Details - Proposed cut-in-wye, insertion manhole, grease/oil interceptor, intermediate cleanout, trench detail, grinder pump installation, and specialty items must be shown in a detail and properly labeled.
7. Proposed Sewer Usage - Proposed sewer discharge design flow and estimated water consumption should be shown on plan in note form or in the project narrative.
8. Chemical Usage/Storage - Any significant chemicals to be stored or used on the site should be identified and Material Safety Data Sheets (MSDS) submitted with plans for review.
FOR FINAL APPROVAL
Prior to final approval of the grinder pump installation, we will require the following:
For existing structures, a copy of the UL inspection
for all electrical work associated with the pump installation. Not required
for new construction.
Effective June 18, 1999
1. The grinder pump unit can be installed inside or outside of the building. Pump model would depend on installation location (Interior vs. Exterior).
2. The grinder pump control panel must include an alarm circuit containing an audible horn, warning light and reset button.
3. All electrical wiring for pump installation shall conform to applicable electrical code requirements.
4. Discharge piping shall be in accordance with
pump manufacturer's/supplier's recommendation. Pipe type shall be PVC
SDR 21 rubber gasketed bell and spigot joint pipe for size 1 ½"or
larger. For 1 ¼" pipe, PVC Schedule 80 or PVC SDR 21 can be
used with PVC compression couplings. Where 1 ¼" PVC bends
are necessary, socket type Schedule 40 or Schedule 80 bends are to be
used. Bends are to be glued to barrel of pipe outside of trench. 90* bends
are not acceptable. Two 45* bends with 2 foot nipple are to be used to
make 90* turn.
11. Prior to final approval of the grinder pump
installation, the following documentation must be submitted to the Pure
How to Contact the Pure Waters Department:
Address: Department of Public Works Division of Pure Waters 347 Old Niskayuna Road Latham, New York 12110 Phone Number: (518) 783-2766, ext. 4 E-Mail:
Last updated 06/19/08