- EPA's UCMR 5 testing looked for 30 contaminants here and found 1.
- lithium: found in 4 of 4 samples, average 42.8 µg/L, highest 57 µg/L (EPA UCMR 5 testing, Feb 2023–Nov 2023)
- Lead: 9 in 10 homes tested came in at or below 3 ppb, at or below EPA's 15 ppb action level (latest EPA result for a testing period that ran on or after July 1, 2021: Jan 1, 2021–Dec 31, 2023)
- No health-standard violations since July 1, 2021 in EPA records.
Public EPA test results
Lockwood Water and Sewer District: what EPA records show
EPA system ID MT0000156 · serves Billings, MT · about 5,900 people (EPA records)
Here's what EPA has on file for this water system: its testing for newer contaminants like PFAS (UCMR 5), lead testing and violations. It's not a test of your tap, and there's no Water Score here.
Public EPA test results
Lockwood Water and Sewer District (EPA MT0000156)
Does Lockwood Water and Sewer District use chloramine?
We didn't find chloramine in Lockwood Water and Sewer District's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)
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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