We read 22 results from City of Murphy’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 19,185 people · Water system ID TX0430042 · 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 1 to 1 · NTMWD (supplier) · 2025 report, page 5 | 1 ppb | 0.004 ppb | 10 ppb | Above the health goal250x the health goal |
| Copper90th percentile of 30 homes tested, 0 over the action level · Customer taps · 2025 report, page 4 | 0.89 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal3x the health goal |
| Gross beta (radioactivity)highest measured · sampled 2024 · NTMWD (supplier) · 2025 report, page 5 | 5.3 pCi/L | 0 pCi/L | 50 pCi/L | Above the health goalThe health goal is zero |
| Bariumhighest measured · range 0.04 to 0.06 · NTMWD (supplier) · 2025 report, page 5 | 0.06 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloramineaverage · range 0.7 to 3.5 · 2025 report, page 4 | 2.8 ppm | None set | 4 ppm | Below the legal limit |
| Chloridehighest measured · range 29 to 92.5 · NTMWD (supplier) · 2025 report, page 5 | 92.5 ppm | — | 250 ppm guideline | Within the guideline |
| Cyanidehighest measured · range 47 to 56 · NTMWD (supplier) · 2025 report, page 5 | 56 ppb | 150 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 12.8 to 36.7 · 2025 report, page 4 | 28 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 20.8 to 88.1 · 2025 report, page 4 | 52 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.35 to 0.49 · NTMWD (supplier) · 2025 report, page 5 | 0.49 ppm | 1 ppm | 4 ppm | Below the health goal |
| Lead90th percentile of 30 homes tested, 0 over the action level · Customer taps · 2025 report, page 4 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range 0.08 to 0.87 · NTMWD (supplier) · 2025 report, page 5 | 0.87 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfatehighest measured · range 84.7 to 147 · NTMWD (supplier) · 2025 report, page 5 | 147 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 182 to 455 · NTMWD (supplier) · 2025 report, page 5 | 455 ppm | — | 500 ppm guideline | Within the guideline |
| Calciumhighest measured · range 31.2 to 61.3 · NTMWD (supplier) · 2025 report, page 5 | 61.3 ppm | None set | None | No health limit |
| Dibromochloromethanehighest measured · range 4.98 to 25.1 · 2025 report, page 4 | 25.1 ppb | None set | None | No health limit |
| Hardnesshighest measured · range 5.61 to 11.7 · NTMWD (supplier) · 2025 report, page 5 | 11.7 gpg (200 ppm) | — | — | Very hard |
| PFBA (a PFAS)average · range ND to 7.8 · 2025 report, page 4 | 5.4 ppt | None set | None | No health limit |
| PFBS (a PFAS)average · range ND to 4.4 · 2025 report, page 4 | 2.8 ppt | None set | None | No health limit |
| PFHxA (a PFAS)average · range 3.4 to 5.6 · 2025 report, page 4 | 4.4 ppt | None set | None | No health limit |
| PFPeA (a PFAS)average · range 3.7 to 5.9 · 2025 report, page 4 | 4.7 ppt | None set | None | No health limit |
| Sodiumhighest measured · range 41.9 to 88 · NTMWD (supplier) · 2025 report, page 5 | 88 ppm | 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in City of Murphy’s water between Aug 2024 and May 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFBS4.4 pptFound in 3 of 4 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: Gross beta (radioactivity)
What removes it: Reverse osmosis.
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