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.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Archived | 2004-10-01 → 2004-10-31 |
| MCL | Health-based | Archived | 2002-07-01 → 2002-07-31 |
| Other | Monitoring | Resolved | 2024-07-01 |
| Other | Monitoring | Resolved | 2024-07-01 |
| Other | Monitoring | Resolved | 2015-07-01 |
| Other | Monitoring | Resolved | 2015-07-01 |
| MR | Monitoring | Resolved | 2008-10-01 |
| MR | Monitoring | Resolved | 2008-10-01 |
| MR | Monitoring | Archived | 1998-10-01 → 1998-10-31 |
| MR | Monitoring | Archived | 1996-05-01 → 1996-05-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| TTHM | 55.675 µg/L 70% of the EPA limit 80 µg/L
worst single sample: 76 µg/L | 112/112 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 38 µg/L 63% of the EPA limit 60 µg/L
worst single sample: 44 µg/L | 112/112 | SYR4 | 2012–2019 |
| Bromodichloromethane | 11.18 µg/L No EPA limit set
worst single sample: 15 µg/L | 92/92 | SYR4 | 2014–2019 |
| Chloroform | 43.34 µg/L No EPA limit set
worst single sample: 58 µg/L | 92/92 | SYR4 | 2014–2019 |
| Dibromochloromethane | 2.646 µg/L No EPA limit set
worst single sample: 3.3 µg/L | 92/92 | SYR4 | 2014–2019 |
| Dichloroacetic Acid | 16 µg/L No EPA limit set
worst single sample: 20 µg/L | 92/92 | SYR4 | 2014–2019 |
| Trichloroacetic Acid | 20 µg/L No EPA limit set
worst single sample: 22 µg/L | 92/92 | SYR4 | 2014–2019 |
| Dibromoacetic Acid | 0.7565 µg/L No EPA limit set
worst single sample: 0.8400 µg/L | 88/92 | SYR4 | 2014–2019 |
| Copper | 307 µg/L 24% of the EPA limit 1300 µg/L
worst single sample: 990 µg/L | 43/43 | SYR4 | 2014–2017 |
| Lead | 7.75 µg/L 52% of the EPA limit 15 µg/L
worst single sample: 14 µg/L | 36/43 | SYR4 | 2014–2017 |
| Monochloroacetic Acid | 1.95 µg/L No EPA limit set
worst single sample: 2.3 µg/L | 35/92 | SYR4 | 2014–2019 |
| Lead | 0.0060 mg/L 40% of the EPA limit 0.0150 mg/L | 10/10 | LCR | 2023 |
| Monobromoacetic Acid | 0.8720 µg/L No EPA limit set
worst single sample: 0.8800 µg/L | 9/92 | SYR4 | 2014–2019 |
1 contaminants tested, none detected
Utility contact
Frequently asked questions about South Cheyenne Water & Sewer District
Is South Cheyenne Water & Sewer District tap water safe to drink?
EPA monitoring detected 13 contaminants in South Cheyenne Water & Sewer District'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 South Cheyenne Water & Sewer District's water?
EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Bromodichloromethane, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does South Cheyenne Water & Sewer District serve?
South Cheyenne Water & Sewer District reports serving 10,000 people in Wyoming, per its EPA record.
Has South Cheyenne Water & Sewer District had any water quality violations?
The EPA has 14 violations on file for South Cheyenne Water & Sewer District, of which 2 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.