Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
0
health-based violations
19
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MR | Monitoring | Resolved | 2005-03-01 → 2005-03-31 |
| MR | Monitoring | Resolved | 2005-02-01 → 2005-02-28 |
| MR | Monitoring | Resolved | 2005-01-01 → 2005-01-31 |
| MR | Monitoring | Resolved | 2003-06-01 → 2003-06-30 |
| MR | Monitoring | Resolved | 2003-06-01 → 2003-06-30 |
| MR | Monitoring | Resolved | 2003-05-01 → 2003-05-31 |
| MR | Monitoring | Resolved | 2003-05-01 → 2003-05-31 |
| MR | Monitoring | Resolved | 2003-04-01 → 2003-04-30 |
| MR | Monitoring | Resolved | 2003-04-01 → 2003-04-30 |
| MR | Monitoring | Resolved | 2003-03-01 → 2003-03-31 |
Other contaminants detected
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of this
system's samples — over 100% is worth reading, but is not by itself a
violation. Where a single sample came in higher than that percentile, it
is noted under the bar. Formal violations are listed separately.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Chlorite | 938 µg/L 94% of the EPA limit 1000 µg/L
worst single sample: 1100 µg/L | 223/223 | SYR4 | 2013–2019 |
| Copper | 71.6 µg/L 5.5% of the EPA limit 1300 µg/L
worst single sample: 400 µg/L | 35/35 | SYR4 | 2013–2018 |
| Nitrate | 852.5 µg/L 8.5% of the EPA limit 10000 µg/L
worst single sample: 870 µg/L | 28/28 | SYR4 | 2012–2019 |
| Lead | 3.35 µg/L 22% of the EPA limit 15 µg/L
worst single sample: 6.5 µg/L | 19/35 | SYR4 | 2013–2018 |
| Bromodichloromethane | 12.25 µg/L No EPA limit set
worst single sample: 13 µg/L | 16/16 | SYR4 | 2012–2019 |
| Chloroform | 6.525 µg/L No EPA limit set
worst single sample: 6.6 µg/L | 16/16 | SYR4 | 2012–2019 |
| Dibromochloromethane | 18.65 µg/L No EPA limit set
worst single sample: 20.9 µg/L | 16/16 | SYR4 | 2012–2019 |
| Bromoform | 31.58 µg/L No EPA limit set
worst single sample: 48.8 µg/L | 15/16 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 22.79 µg/L No EPA limit set
worst single sample: 23 µg/L | 8/8 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 16.935 µg/L No EPA limit set
worst single sample: 19 µg/L | 8/8 | SYR4 | 2012–2019 |
| Fluoride | 613 µg/L 15% of the EPA limit 4000 µg/L
worst single sample: 620 µg/L | 8/8 | SYR4 | 2012–2019 |
| TTHM | 67.925 µg/L 85% of the EPA limit 80 µg/L
worst single sample: 76.5 µg/L | 8/8 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 32.19 µg/L 54% of the EPA limit 60 µg/L
worst single sample: 34.5 µg/L | 8/8 | SYR4 | 2012–2019 |
| Atrazine | 0.3400 µg/L 11% of the EPA limit 3 µg/L
worst single sample: 0.3700 µg/L | 7/8 | SYR4 | 2012–2019 |
| Barium | 138.1 µg/L 6.9% of the EPA limit 2000 µg/L
worst single sample: 142 µg/L | 7/7 | SYR4 | 2013–2019 |
| Lead | 0.0024 mg/L 16% of the EPA limit 0.0150 mg/L | 7/7 | LCR | 2025 |
| Trichloroacetic Acid | 2.04 µg/L No EPA limit set
worst single sample: 2.1 µg/L | 5/8 | SYR4 | 2012–2019 |
| Cyanide | 107 µg/L 54% of the EPA limit 200 µg/L
worst single sample: 110 µg/L | 4/6 | SYR4 | 2014–2019 |
| Nitrate-Nitrite | 573.4 µg/L 5.7% of the EPA limit 10000 µg/L
worst single sample: 634 µg/L | 4/4 | SYR4 | 2012–2015 |
| Gross Beta Particle Activity | 9.59 pCi/L No EPA limit set
worst single sample: 9.7 pCi/L | 3/3 | SYR4 | 2012–2018 |
| Monobromoacetic Acid | 3.43 µg/L No EPA limit set
worst single sample: 3.6 µg/L | 3/8 | SYR4 | 2012–2019 |
| Arsenic | 3.38 µg/L 34% of the EPA limit 10 µg/L
worst single sample: 3.4 µg/L | 2/7 | SYR4 | 2013–2019 |
| Selenium | 4.275 µg/L 8.6% of the EPA limit 50 µg/L
worst single sample: 4.3 µg/L | 2/7 | SYR4 | 2013–2019 |
| Combined Radium (-226 And -228) | 1 pCi/L 20% of the EPA limit 5 pCi/L | 1/1 | SYR4 | 2012 |
| Dichloromethane | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/8 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 2.2 µg/L No EPA limit set | 1/8 | SYR4 | 2012–2019 |
| Nitrite | 10 µg/L 1% of the EPA limit 1000 µg/L | 1/5 | SYR4 | 2012–2015 |
53 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about San Patricio Mwd
Is San Patricio Mwd tap water safe to drink?
EPA monitoring detected 27 contaminants in San Patricio Mwd's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in San Patricio Mwd's water?
EPA monitoring detected Chlorite, Copper, Nitrate, Lead, Bromodichloromethane, and others. The full list with the level and data source for each is above.
How many people does San Patricio Mwd serve?
San Patricio Mwd reports serving 48 people in Texas, per its EPA record.
Has San Patricio Mwd had any water quality violations?
The EPA has 19 violations on file for San Patricio Mwd, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.