- EPA's UCMR 5 testing looked for 30 contaminants here and found 10.
- Lithium: found in 8 of 38 samples, average 2.23 µg/L, highest 11.9 µg/L (EPA UCMR 5 testing, Mar 2023–Mar 2025)
- PFOA (a PFAS): found in 33 of 38 samples, average 18.1 ppt, highest 31.4 ppt (EPA UCMR 5 testing, Mar 2023–Mar 2025) PFOA or PFOS averaged above 4.0 ppt in UCMR 5 testing
- PFPeA (a PFAS): found in 37 of 38 samples, average 8.5 ppt, highest 26.7 ppt (EPA UCMR 5 testing, Mar 2023–Mar 2025)
- PFHxA (a PFAS): found in 35 of 38 samples, average 7.4 ppt, highest 16.3 ppt (EPA UCMR 5 testing, Mar 2023–Mar 2025)
- PFOS (a PFAS): found in 29 of 38 samples, average 6.8 ppt, highest 13.8 ppt (EPA UCMR 5 testing, Mar 2023–Mar 2025) PFOA or PFOS averaged above 4.0 ppt in UCMR 5 testing
- PFBA (a PFAS): found in 32 of 38 samples, average 5.6 ppt, highest 10.7 ppt (EPA UCMR 5 testing, Mar 2023–Mar 2025)
- PFBS (a PFAS): found in 30 of 38 samples, average 4.6 ppt, highest 8.6 ppt (EPA UCMR 5 testing, Mar 2023–Mar 2025)
- PFHpA (a PFAS): found in 30 of 38 samples, average 4.1 ppt, highest 7.2 ppt (EPA UCMR 5 testing, Mar 2023–Mar 2025)
- PFHxS (a PFAS): found in 22 of 38 samples, average 2.2 ppt, highest 4.9 ppt (EPA UCMR 5 testing, Mar 2023–Mar 2025)
- PFHpS (a PFAS): found in 1 of 38 samples, average 0.10 ppt, highest 3 ppt (EPA UCMR 5 testing, Mar 2023–Mar 2025)
- Lead, 90th percentile: 2.61 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2026–Jun 30, 2026). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
Public EPA test results
Can you drink Ridgewood tap water? What EPA records show
EPA NJ0251001 · serves Ridgewood Twp-0251, NJ · about 61,700 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Ridgewood Water (EPA NJ0251001)
EPA data as of October 14, 2026. For Ridgewood's main utility, Ridgewood Water: We found no health-based violations in EPA's records for this system (NJ0251001) since July 1, 2021, as of October 14, 2026. This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing. This is public data, not a test of your tap.
What EPA records show for Ridgewood Water, as of October 14, 2026
We found no health-based violations in EPA's records for this system (NJ0251001) since July 1, 2021, as of October 14, 2026.
Source: EPA ECHO record for Ridgewood Water (SDWIS). Data as of October 14, 2026.
Lead, 90th percentile: 2.61 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2026–Jun 30, 2026). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing.
EPA's UCMR 5 testing looked for 30 contaminants here and found 10.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Ridgewood Water use chloramine?
We didn't find chloramine in Ridgewood Water's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.