Tap Water Results

Is Rotterdam, NY tap water safe?

Data: U.S. EPA · How we read the data · How we check it

Summary

No federal limits exceeded in EPA data for Rotterdam Water District #5.

3 public water systems serve parts of Rotterdam. The largest, Rotterdam Water District #5, serves 28,000 people. Your water bill names your system.

Largest system

Rotterdam Water District #5

28,000 people · Groundwater · EPA ID NY4600069

PFASHighest averageLimitStatus
PFOA
Not detected
–4 pptNot detected
PFOS
Not detected
–4 pptNot detected
PFHxS
Not detected
–10 pptNot detected
PFNA
Not detected
–10 pptNot detected
HFPO-DA (GenX)
Not detected
–10 pptNot detected

ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.

Lead: 0.83 ppb at the 90th percentile (Nov 2026, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0

Across New York, 31 of 322 water systems EPA tested had PFAS above a 2024 federal limit, and 16 systems were above the lead action level in results from the last five years. New York results.

Rotterdam homes and lead pipes

70%
of homes built before 1980 (New York 74%, US 50%)
28%
built before 1950 (New York 38%)
26%
of households rent (New York 46%)

Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.

Housing: Census American Community Survey 2020–2024 5-year estimates for Rotterdam town (tables B25034, B25003). Estimates for small places have a margin of error.

Other water systems serving Rotterdam

  • Rotterdam Water District #3
    1,900 people · Groundwater · New York · lists this city
    Not in EPA's PFAS sample
  • West Hill Water Company Inc.
    180 people · Groundwater · New York · lists this city
    Not in EPA's PFAS sample

How nearby cities compare

CityMain water systemPFASLead (90th pct.)
Schenectady 4 mi
Schenectady City Water Works
Schenectady City Water WorksNone above limits3 ppb
Glenville 5 mi
Glenville Water District #11
Glenville Water District #11None above limits4.1 ppb
Guilderland 8 mi
Guilderland Town Water District
Guilderland Town Water DistrictNone above limits2.8 ppb
Clifton Park 10 mi
Clifton Park Water Authority
Clifton Park Water AuthorityNone above limits1 ppb
Colonie 12 mi
Latham Water District
Latham Water DistrictNone above limits2 ppb
Halfmoon 15 mi
Halfmoon Water District (TROY)
Halfmoon Water District (TROY)None above limits2.4 ppb
Rotterdam ZIP codes (2)
  • 12150
  • 12306

Questions

Is Rotterdam tap water safe to drink?

Rotterdam Water District #5 has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.

Who supplies water in Rotterdam, NY?

3 public water systems serve parts of Rotterdam. The largest is Rotterdam Water District #5 (28,000 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.

Does Rotterdam tap water have PFAS?

None detected above EPA's reporting limits. Rotterdam Water District #5 had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.

Do Rotterdam homes have lead pipes?

Census estimates put 70% of Rotterdam homes as built before 1980 (New York: 74%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Rotterdam Water District #5's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.

Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.