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.
94
health-based violations
535
violations on file
0
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 2016-09-01 → 2016-09-30 |
| TT | Health-based | Resolved | 2016-09-01 → 2016-09-30 |
| TT | Health-based | Resolved | 2016-09-01 → 2016-09-30 |
| TT | Health-based | Resolved | 2016-09-01 → 2016-09-30 |
| MCL | Health-based | Resolved | 2015-08-01 → 2015-08-31 |
| MCL | Health-based | Resolved | 2015-08-01 → 2015-08-31 |
| MCL | Health-based | Resolved | 2015-08-01 → 2015-08-31 |
| MCL | Health-based | Resolved | 2015-08-01 → 2015-08-31 |
| MCL | Health-based | Resolved | 2015-08-01 → 2015-08-31 |
| MCL | Health-based | Resolved | 2015-08-01 → 2015-08-31 |
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 |
|---|---|---|---|---|
| Nitrate | 5104.5 µg/L 51% of the EPA limit 10000 µg/L
worst single sample: 6600 µg/L | 190/198 | SYR4 | 2012–2019 |
| Bromodichloromethane | 13.02 µg/L No EPA limit set
worst single sample: 19 µg/L | 139/139 | SYR4 | 2012–2019 |
| Dibromochloromethane | 7.225 µg/L No EPA limit set
worst single sample: 9.7 µg/L | 136/139 | SYR4 | 2012–2019 |
| TTHM | 45.675 µg/L 57% of the EPA limit 80 µg/L
worst single sample: 73.3 µg/L | 136/142 | SYR4 | 2012–2019 |
| Chloroform | 25.32 µg/L No EPA limit set
worst single sample: 47 µg/L | 135/139 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 22.56 µg/L 38% of the EPA limit 60 µg/L
worst single sample: 36 µg/L | 114/142 | SYR4 | 2012–2019 |
| Copper | 175.55 µg/L 14% of the EPA limit 1300 µg/L
worst single sample: 858 µg/L | 100/101 | SYR4 | 2013–2019 |
| Bromoform | 1.94 µg/L No EPA limit set
worst single sample: 3.2 µg/L | 93/139 | SYR4 | 2012–2019 |
| Lead | 12.2 µg/L 81% of the EPA limit 15 µg/L
worst single sample: 47 µg/L | 61/101 | SYR4 | 2013–2019 |
| Fluoride | 512 µg/L 13% of the EPA limit 4000 µg/L
worst single sample: 530 µg/L | 39/59 | SYR4 | 2012–2019 |
| Barium | 64 µg/L 3.2% of the EPA limit 2000 µg/L
worst single sample: 67 µg/L | 21/21 | SYR4 | 2012–2018 |
| Dichloroacetic Acid | 7.8435 µg/L No EPA limit set
worst single sample: 8.09 µg/L | 18/20 | SYR4 | 2018–2019 |
| Trichloroacetic Acid | 5.909 µg/L No EPA limit set
worst single sample: 7.15 µg/L | 18/20 | SYR4 | 2018–2019 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L | 15/15 | LCR | 2025 |
| Chromium | 1.89 µg/L 1.9% of the EPA limit 100 µg/L
worst single sample: 2 µg/L | 12/21 | SYR4 | 2012–2018 |
| Dibromoacetic Acid | 1.898 µg/L No EPA limit set
worst single sample: 1.97 µg/L | 10/20 | SYR4 | 2018–2019 |
| 1,1,1-Trichloroethane | 1.04 µg/L 0.5% of the EPA limit 200 µg/L
worst single sample: 1.1 µg/L | 5/43 | SYR4 | 2012–2019 |
| Arsenic | 0.5900 µg/L 5.9% of the EPA limit 10 µg/L
worst single sample: 0.6000 µg/L | 3/21 | SYR4 | 2012–2018 |
| Nitrite | 3 µg/L 0.3% of the EPA limit 1000 µg/L | 2/99 | SYR4 | 2012–2019 |
| Benzene | 0.9000 µg/L 18% of the EPA limit 5 µg/L | 1/43 | SYR4 | 2012–2019 |
| Cyanide | 1 µg/L 0.5% of the EPA limit 200 µg/L | 1/21 | SYR4 | 2012–2018 |
| Combined Uranium | 1.0281 µg/L 3.4% of the EPA limit 30 µg/L | 1/9 | SYR4 | 2012–2018 |
| Di(2-ethylhexyl) Phthalate | 1.1 µg/L 18% of the EPA limit 6 µg/L | 1/41 | SYR4 | 2012–2019 |
| Mercury | 0.1000 µg/L 5% of the EPA limit 2 µg/L | 1/21 | SYR4 | 2012–2018 |
| Selenium | 1.2 µg/L 2.4% of the EPA limit 50 µg/L | 1/21 | SYR4 | 2012–2018 |
| Thallium, Total | 0.0300 µg/L 1.5% of the EPA limit 2 µg/L | 1/21 | SYR4 | 2012–2018 |
81 contaminants tested, none detected
1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Swt Main
Is Swt Main tap water safe to drink?
EPA monitoring detected 29 contaminants in Swt Main'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 Swt Main's water?
EPA monitoring detected Nitrate, Bromodichloromethane, Dibromochloromethane, TTHM, Chloroform, and others. The full list with the level and data source for each is above.
How many people does Swt Main serve?
Swt Main reports serving 14,500 people in Pennsylvania, per its EPA record.
Has Swt Main had any water quality violations?
The EPA has 535 violations on file for Swt Main, of which 94 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.