We read 8 results from Parkland Light & Water Company’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 29,595 people · Water system ID WA5366200 · Read the district’s 2025 report (opens in a new tab)
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Results from the 2025 report
Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Arsenichighest measured · range ND to 3.7 · listed as a violation in the report · printed as 0.0037 ppm · sampled 2024 · Wells · 2025 report, page 3 | 3.7 ppb | 0.004 ppb | 10 ppb | Above the health goal925x the health goal |
| Copperhighest measured · range 0.03 to 0.85 · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 3 | 0.85 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal2.8x the health goal |
| Radium (combined 226 + 228)highest measured · range ND to 0.53 · listed as a violation in the report · sampled 2024 · Wells · 2025 report, page 3 | 0.53 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Chlorinehighest measured · range 0.26 to 1.24 · listed as a violation in the report · sampled 2022 · Distribution system · 2025 report, page 3 | 1.24 ppm | None set | 4 ppm | Below the legal limit |
| Disinfection byproducts (HAA5)highest measured · range ND to 1 · listed as a violation in the report · sampled 2026 · Distribution system · 2025 report, page 3 | 1 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest measured · range 2.85 to 6.52 · listed as a violation in the report · sampled 2026 · Distribution system · 2025 report, page 3 | 6.52 ppb | None set | 80 ppb | Below the legal limit |
| Nitrate (as N)highest measured · range ND to 2.68 · listed as a violation in the report · Wells · 2025 report, page 3 | 2.68 ppm | 10 ppm | 10 ppm | Below the health goal |
| Chloroformhighest measured · range 10.2 to 10.8 · listed as a violation in the report · sampled 2022 · Distribution system · 2025 report, page 3 | 10.8 ppb | None set | None | No health limit |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper. 1 number we weren’t sure about is held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Parkland Light & Water Company’s water between Feb 2024 and Aug 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOA6.2 pptFound in 3 of 10 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFOS13.8 pptFound in 4 of 10 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFHxS4.7 pptFound in 3 of 10 samples · highest resultNo federal limit in force for this one
- PFBS7.5 pptFound in 3 of 10 samples · highest resultNo federal limit in force for this one
Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.
What you can do
Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
Copper
Found: Copper
What removes it: Reverse osmosis.
Radium and uranium
Found: Radium (combined 226 + 228)
What removes it: Reverse osmosis.
PFAS ("forever chemicals")
Found: PFOA (EPA testing), PFOS (EPA testing)
What removes it: Reverse osmosis.
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