What EPA records show for Sparta TWP Water Utility - Lake Mohawk
EPA NJ1918004 · serves Sparta Twp.-1918, NJ · about 17,625 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
Sparta TWP Water Utility - Lake Mohawk (EPA NJ1918004)
What EPA records show for Sparta TWP Water Utility - Lake Mohawk, as of October 14, 2026
Health-based violation: Lead and Copper Rule, Lead and Copper Rule, from Jul 2023, with no return-to-compliance action in EPA records (EPA SDWIS).
Lead, 90th percentile: 1.01 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 7.
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 Sparta TWP Water Utility - Lake Mohawk use chloramine?
We didn't find chloramine in Sparta TWP Water Utility - Lake Mohawk's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
Reported results in EPA records (data as of Oct 14–15, 2026)
EPA's UCMR 5 testing looked for 30 contaminants here and found 7.
PFPeA (a PFAS): found in 19 of 26 samples, average 4.6 ppt, highest 14.4 ppt (EPA UCMR 5 testing, Dec 2023–Jun 2024)
PFOA (a PFAS): found in 18 of 26 samples, average 4.1 ppt, highest 8.6 ppt (EPA UCMR 5 testing, Dec 2023–Jun 2024) PFOA or PFOS averaged above 4.0 ppt in UCMR 5 testing
PFHxA (a PFAS): found in 16 of 26 samples, average 3.2 ppt, highest 7.9 ppt (EPA UCMR 5 testing, Dec 2023–Jun 2024)
PFOS (a PFAS): found in 15 of 26 samples, average 3.1 ppt, highest 9.3 ppt (EPA UCMR 5 testing, Dec 2023–Jun 2024)
PFBS (a PFAS): found in 11 of 26 samples, average 2.6 ppt, highest 12.9 ppt (EPA UCMR 5 testing, Dec 2023–Jun 2024)
PFBA (a PFAS): found in 4 of 26 samples, average 1.1 ppt, highest 8.1 ppt (EPA UCMR 5 testing, Dec 2023–Jun 2024)
PFHxS (a PFAS): found in 2 of 26 samples, average 0.30 ppt, highest 3.5 ppt (EPA UCMR 5 testing, Dec 2023–Jun 2024)
Lead, 90th percentile: 1.01 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.
Health-based violation: Lead and Copper Rule, Lead and Copper Rule, from Jul 2023, with no return-to-compliance action in EPA records (EPA SDWIS)
Source: EPA SDWIS (ECHO SDWA bulk download), data as of Oct 14, 2026
Source: EPA UCMR 5 occurrence data, data as of Oct 15, 2026
These are EPA's public records for this water system, shown as of October 14, 2026. If you represent this utility, or think a record here is wrong, tell us: Report an error. If the error is in EPA's own records, your state drinking water program can correct it there, and this page updates at our next data refresh.
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