waterbycounty
EPA SDWIS

Schenectady County Water Quality

Schenectady County, New York

Water Grade

D

Water Score

47.4

Violations

29

State Rank

#20

of 57 (1 = best)

EPA SDWIS Compliance

Drinking Water Quality

Water Quality Grade

D

Based on EPA compliance history and violation data

Water Score

47.4/100

Higher = better quality

Health Violations

29

Health-based violations

Violation Rate

20.2%

Systems with violations

Water Advisory: Schenectady County

Water Verdict

Schenectady County receives a below-average water quality assessment with a grade of D and a score of 47.4 out of 100. Residents should review their utility's Consumer Confidence Report and may want to consider additional water filtration for drinking.

Violation Context

Schenectady County has recorded 29 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 20.2 violations per 1,000 residents, this rate is high and signals significant water quality management issues.

Consumer Guidance

Residents of Schenectady County are advised to use filtered or bottled water for drinking and cooking until water quality improves. A reverse-osmosis or activated-carbon filter certified to remove the contaminants listed in the utility's Consumer Confidence Report is recommended. With 29 recorded health violations, staying informed about utility communications and boil-water notices is especially important. For long-term peace of mind, request your utility's latest Consumer Confidence Report and consider independent water testing if you have specific health concerns.

Regional Context

Schenectady County has better water quality than the average county in New York. Its water score is 7.3 points higher than the state average, indicating stronger water system performance relative to neighboring counties.

Past 5 years

Water Quality Monitoring

Monitoring Sites

5

Active in the past 5 years

Measurements Recorded

878

878 total readings

Most Measured

  • Physical
  • Organics, Other
  • Organics, Pesticide

Categories measured most frequently

Data from the EPA Water Quality Portal (WQP), aggregating monitoring records from federal, state, and tribal sources. Each measurement represents a single sample analyzed for a specific characteristic (e.g., E. coli, pH, dissolved oxygen, nitrogen).

Live USGS Streamgage

River & Stream Conditions

Current Discharge

3,350cfs

May 14, 6:00 PM UTC

vs Long-Term Average

53%

Well below typical

Primary Streamgage

MOHAWK RIVER AT FREEMAN'S BRIDGE AT SCHENECTADY NY

USGS site
01354500
Drainage area
3,310 sq mi
Long-term mean
6,360 cfs

One representative streamgage (the one with the largest drainage area in the county). Many counties have multiple gauges — this view summarizes the primary one. The long-term mean is the full-record annual average; "% of typical" compares the latest reading against that average.

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Frequently Asked Questions

What is the water quality in Schenectady County, New York?
Schenectady County, New York has a drinking-water quality grade of D with a score of 47.4/100, based on EPA SDWIS compliance data. The county has 29 health-based drinking water violations over the past 5 years. Watershed health, monitoring records, and live streamflow are reported separately on this page.
Are there any water violations in Schenectady County?
Schenectady County has 29 health-based drinking water violations recorded by the EPA over the past 5 years. Health-based violations indicate instances where contaminant levels exceeded EPA Maximum Contaminant Levels (MCLs). Violations may have been resolved — check with your local water utility for current status.
How much water-quality monitoring happens in Schenectady County?
EPA's Water Quality Portal records 878 measurements from 5 monitoring sites in Schenectady County over the past five years. The most frequently measured characteristic groups are Physical, Organics, Other, Organics, Pesticide. Each measurement is a single sample analyzed for one characteristic (E. coli, pH, dissolved oxygen, etc.). High monitoring density means more scientific evidence behind any reported signal — it does not by itself indicate water quality.
What's happening with rivers in Schenectady County right now?
Schenectady County's primary USGS streamgage on the MOHAWK RIVER is currently reading 3,350 cubic feet per second — 53% of the long-term mean of 6,360.23 cfs. This is well below typical — often a signal of drought stress on source water. For genuine real-time data, visit waterdata.usgs.gov.
How does Schenectady County water compare to the New York average?
Schenectady County's SDWIS water quality score of 47.4/100 is higher than the New York state average of 40.1. The average water quality grade across New York is D, based on data from 57 counties with available SDWIS data.
Is tap water safe to drink in Schenectady County?
Based on EPA SDWIS data, Schenectady County has a water quality grade of D (47.4/100). This indicates below-average compliance with significant violations. Residents may want to consider home water filtration or independent testing. The grade speaks to the public water system, not the watershed — for watershed-level concerns, see the Watershed Health zone. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).
Why does Schenectady County have so many water violations?
Schenectady County has 29 health-based drinking water violations on record from the EPA SDWIS database. A higher violation count can result from aging infrastructure, underfunded water utilities, agricultural runoff contamination, or industrial pollution. Counties with more water systems may also see more violations simply due to scale. Residents concerned about water quality should consider independent water testing and home filtration systems.
How does Schenectady County rank for water quality in New York?
Schenectady County ranks #20 out of 57 counties in New York by SDWIS water quality score (1 = best). With a score of 47.4/100, it falls in the middle third of counties statewide. The ranking reflects EPA SDWIS compliance only — not watershed impairment, monitoring density, or streamflow, which are tracked separately on this page.

Counties with Similar Water Quality

Ulster County

New York

D

47.0

Water score

Clinton County

New York

D

48.1

Water score

Rockland County

New York

D

49.1

Water score

Data Sources

Drinking-water compliance data from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Water-quality monitoring counts from the EPA Water Quality Portal (WQP) — federated USGS, EPA, and state agency sampling records over a rolling 5-year window.

Live streamflow from the USGS National Water Information System (NWIS) — continuous discharge measurements from the largest-drainage gauge in each county, compared against the full-record long-term annual mean.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

By Logan Johnson, Founder & Data EditorUpdated Reviewed by Logan Johnson, Founder & Data Editor

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