Drinking water quality · 2024
· Verified
What's in Pearland, TX tap water
2 contaminants in Pearland, TX's water sat at or above a federal limit, led by Chloramine at 1.0x the limit.
- !2 contaminants at or above a federal limit — worst is Chloramine at 1.0x
- !3 contaminants within 20% of a limit
- !12 of 27 core regulated contaminants reported — 15 never appear in this report
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −24 contaminants at or above a federal limit
- −12 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −0 health-based violations resolved in the last 5 years
- −11 core regulated contaminants never reported (12/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- Chloramine1.0× the federal limit0.5–4 mg/L · limit 4 mg/L
Holds disinfection further into the pipe network, but is regulated under the same residual-disinfectant cap as chlorine.
higher than 90% of U.S. systems
- Cyanide1.0× the federal limit200 ug/L · limit 200 ug/L
- Arsenic99% of the federal limit0–9.9 ug/L · limit 10 ug/L
A known human carcinogen; long-term exposure is linked to skin, bladder, and lung cancer.
higher than 95% of U.S. systems
- Xylenes91% of the federal limit9.1 mg/L · limit 10 mg/L
Long-term exposure above the federal limit can damage the nervous system.
- Turbidity80% of the federal limit0.8 NTU · limit 1 NTU
High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
higher than 80% of U.S. systems
+10 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Atrazine | 0–2.3 ug/L | 3 ug/L |
| TTHM | 0–52.2 ug/L | 80 ug/L |
| Fluoride | 0.21–0.85 mg/L | 4 mg/L |
| Barium | 0.357 mg/L | 2 mg/L |
| Nitrate | 0–1.06 mg/L | 10 mg/L |
| Copper | 0.075 mg/L | 1.3 mg/L |
| Simazine | 0.14 ug/L | 4 ug/L |
| Lead | Not detected ug/L | 15 ug/L |
| Total Coliform | 3.4 | — |
| Dehp | Not detected ug/L | 6 ug/L |
What this report doesn't tell you
15 of the 27 contaminants a community water system normally reports do not appear anywhere in Pearland, TX's data. Absent is not the same as absent-from-the-water — it means nobody published a number.