6/11/2025
Sarah Thiessen
 Drinking water questions? Give us a call at 877-52-WATER (877-529-2837), or email info@wtny.us
Wednesday, June 11, 2025 11:51 am EDT
Safe Drinking Water Profile: Rensselaer City Public Water System
Rensselaer County : On June 6th 2025, the City of Rensselaer issued a water conservation advisory until further notice due to ongoing maintenance at the Cross Street Pump Stations with the main water valves. The Town of Greenbush is also impacted by this advisory.
There are 8,180 licensed public drinking water facilities in New York State. See more New York Drinking Water Facility Profiles, here.
DWF Profile: Rensselaer City Public Water System
Watershed: Lower Hudson River Watershed
Status: Violations Identified
Owner: local government
Location: Rensselaer, NY
County: Rensselaer County
Active Permit: NY4100044
System Type: community water system
Population Served: 9300
Source: surface water, purchased from the City of Troy.
Treatment: From the 2023 Annual Drinking Water Quality Report for The City of Rensselaer "The City of Rensselaer purchases its water from the City of Troy. Water is supplied to us under a contract arrangement. The City of Troy draws its water from a “surface water” supply, the spring fed Tomhannock Reservoir. It is located to the northeast of the City of Troy. Water flows from the Tomhannock Reservoir to the Troy Water Treatment Plant (TWTP), a complete treatment facility. In an effort to lower the formation of disinfection byproducts (DBBPs), TWTP has started to add potassium permanganate at the Tomhannock Reservoir. Potassium permanganate is a strong oxidant that is used to oxidize iron and manganese, but does not produce the DBBPs that chlorine does. Potassium permanganate is being fed seasonally from mid June to about September or October depending on the iron and manganese levels in the raw water. Additionally, chlorine dioxide is added at Melrose Station to oxidize the organic material that leads to the formation of disinfection byproducts when it reacts with chlorine but unlike chlorine, chlorine dioxide does not form DBBPs like THM’s or HAA5’s. Chlorine dioxide is fed year-round. They also add fluoride at low levels to protect teeth against dental cavities. Finished water from the Troy WTP is piped to our distribution system. We have a 0.75-million-gallon storage tank and two new 5-million-gallon storage tanks to meet consumer demand and provide adequate fire protection. "
Daily Capacity: 5,445,00 gallons
Admin Contact: Fran Welsh, 518-462-0749
Latest Compliance Inspection: Sanitary Survey Complete Feb 27 2024
Minor recommendations made for data verification
Significant deficiencies in Pumps
The following information gathered from federal EPA pertains to the quarter ending Dec 31, 2024 (data last refreshed on EPA database May 8 2025)
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Non-compliant inspections
(of the previous 12 quarters)
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with Significant Violations
(of the previous 12 quarters)
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Informal
Enforcement Actions
(last 5 yrs)
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Formal
Enforcement Actions
(last 5 years)
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12 out of 12
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0 out of 12
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1
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2
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Violations and Non-compliance History:
Maximum contaminant level violation - Stage 2 Disinfectants and Disinfection Byproducts Rule - noted January 1 2022 - March 1 2022 - unaddressed
*Note that drinking water information provided on this site is aggregated from the federal EPA database, state resources and local government sources where available.
EPA publishes violation and enforcement data quarterly, based on the inspection reports of the previous quarter. Water systems, states and EPA take up to three months to verify this data is accurate and complete.
Specific questions about your local water supply should be directed to the facility.
The EPA safe drinking water facilities data available to the public presents what is known to the government based upon the most recently available information for more than one million regulated facilities. EPA and states inspect a percentage of facilities each year, but many facilities, particularly smaller ones, may not have received a recent inspection. It is possible that facilities do have violations that have not yet been discovered, thus are shown as compliant in the system.
EPA cannot positively state that facilities without violations shown in ECHO are necessarily fully compliant with environmental laws. Additionally, some violations at smaller facilities do not need to be reported from the states to EPA. If ECHO shows a recent inspection and the facility is shown with no violations identified, users of the ECHO site can be more confident that the facility is in compliance with federal programs.
The compliance status of smaller facilities that have not had recent inspections or review by EPA or the states may be unknown or only available via state data systems.
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