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.
43
health-based violations
109
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2015-01-01 → 2015-03-31 |
| MCL | Health-based | Resolved | 2015-01-01 → 2015-03-31 |
| MCL | Health-based | Resolved | 2015-01-01 → 2015-03-31 |
| MCL | Health-based | Resolved | 2015-01-01 → 2015-03-31 |
| MCL | Health-based | Resolved | 2015-01-01 → 2015-03-31 |
| MCL | Health-based | Resolved | 2015-01-01 → 2015-03-31 |
| MCL | Health-based | Resolved | 2014-10-01 → 2014-12-31 |
| MCL | Health-based | Resolved | 2014-10-01 → 2014-12-31 |
| MCL | Health-based | Resolved | 2014-10-01 → 2014-12-31 |
| MCL | Health-based | Resolved | 2014-10-01 → 2014-12-31 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
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 |
|---|---|---|---|---|
| Copper | 320 µg/L 25% of the EPA limit 1300 µg/L
worst single sample: 735 µg/L | 84/85 | SYR4 | 2012–2019 |
| Nitrate | 2937.5 µg/L 29% of the EPA limit 10000 µg/L
worst single sample: 3020 µg/L | 66/70 | SYR4 | 2012–2019 |
| Bromoform | 48.63 µg/L No EPA limit set
worst single sample: 184 µg/L | 62/77 | SYR4 | 2012–2019 |
| TTHM | 102.4 µg/L 128% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 308.7 µg/L | 54/58 | SYR4 | 2012–2019 |
| Dibromochloromethane | 32.345 µg/L No EPA limit set
worst single sample: 75.8 µg/L | 52/77 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 37.27 µg/L 62% of the EPA limit 60 µg/L
worst single sample: 50.6 µg/L | 52/57 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 14.5 µg/L No EPA limit set
worst single sample: 20.1 µg/L | 49/57 | SYR4 | 2012–2019 |
| Lead | 6.674 µg/L 44% of the EPA limit 15 µg/L
worst single sample: 7.83 µg/L | 45/85 | SYR4 | 2012–2019 |
| Bromodichloromethane | 30.685 µg/L No EPA limit set
worst single sample: 36.7 µg/L | 34/77 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 12.7 µg/L No EPA limit set
worst single sample: 16.8 µg/L | 31/57 | SYR4 | 2012–2019 |
| Monochloroacetic Acid | 9.76 µg/L No EPA limit set
worst single sample: 10.6 µg/L | 29/57 | SYR4 | 2012–2019 |
| Chloroform | 23.565 µg/L No EPA limit set
worst single sample: 47.3 µg/L | 28/77 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 15.7 µg/L No EPA limit set
worst single sample: 26.6 µg/L | 24/57 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 3.1 µg/L No EPA limit set
worst single sample: 3.5 µg/L | 17/57 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2026 |
| Nitrate-Nitrite | 2726 µg/L 27% of the EPA limit 10000 µg/L
worst single sample: 3020 µg/L | 15/16 | SYR4 | 2012–2019 |
| Lithium | 40.3 µg/L No EPA limit set | 10/10 | UCMR-5 | 2025 |
| Barium | 81 µg/L 4.1% of the EPA limit 2000 µg/L
worst single sample: 84 µg/L | 6/6 | SYR4 | 2014–2019 |
| Fluoride | 1540 µg/L 39% of the EPA limit 4000 µg/L
worst single sample: 1710 µg/L | 6/6 | SYR4 | 2014–2017 |
| Chromium | 3.07 µg/L 3.1% of the EPA limit 100 µg/L
worst single sample: 3.4 µg/L | 4/6 | SYR4 | 2014–2019 |
| Xylenes, Total | 10.3955 µg/L 0.1% of the EPA limit 10000 µg/L
worst single sample: 11.6 µg/L | 4/20 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 1.208 pCi/L 24% of the EPA limit 5 pCi/L
worst single sample: 1.22 pCi/L | 3/3 | SYR4 | 2012–2018 |
| Arsenic | 2.2315 µg/L 22% of the EPA limit 10 µg/L
worst single sample: 2.3 µg/L | 2/6 | SYR4 | 2014–2019 |
| Ethylbenzene | 2.14465 µg/L 0.3% of the EPA limit 700 µg/L
worst single sample: 2.23 µg/L | 2/20 | SYR4 | 2012–2019 |
| Selenium | 12.44 µg/L 25% of the EPA limit 50 µg/L
worst single sample: 13 µg/L | 2/6 | SYR4 | 2014–2019 |
| Combined Uranium | 1.4 µg/L 4.7% of the EPA limit 30 µg/L | 1/3 | SYR4 | 2014–2018 |
| Gross Alpha, Excl. Radon And U | 5.3 pCi/L 35% of the EPA limit 15 pCi/L | 1/3 | SYR4 | 2014–2018 |
| Nitrite | 1500 µg/L 150% of the EPA limit, at the 95th percentile of samples — 1000 µg/L | 1/34 | SYR4 | 2012–2019 |
75 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPFOSPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Tanglewood on Texoma
Is Tanglewood on Texoma tap water safe to drink?
EPA monitoring detected 34 contaminants in Tanglewood on Texoma'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 Tanglewood on Texoma's water?
EPA monitoring detected Copper, Nitrate, Bromoform, TTHM, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Tanglewood on Texoma serve?
Tanglewood on Texoma reports serving 4,341 people in Texas, per its EPA record.
Has Tanglewood on Texoma had any water quality violations?
The EPA has 109 violations on file for Tanglewood on Texoma, of which 43 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.