Water Quality in DENVER, CO (80237)
EPA violation data for public water systems serving ZIP code 80237.
570
Total Violations
224
Health-Based
346
Monitoring / Reporting
537
Resolved
What does this mean?
537 of 570 violations have been resolved. 224 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 346 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (570 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| TTHM | Monitoring | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jul 31, 2025 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Jul 1, 2025 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Jul 1, 2025 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.016 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Jun 30, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 30, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 30, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 27, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 27, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 27, 2025 | Active | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 27, 2025 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.017 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Mar 31, 2025 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| TTHM | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Mar 31, 2025 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Jan 31, 2025 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Jan 31, 2025 | Active | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Dec 31, 2024 | Active | N/A |
| TTHM | Monitoring | N/A | N/A | Dec 31, 2024 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Monitoring | N/A | N/A | Dec 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 29, 2024 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 29, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Active | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Monitoring | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| LEAD AND COPPER RULE REVISIONS | Health-Based | N/A | N/A | Oct 16, 2024 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Sep 30, 2024 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2024 | Active | N/A |
| Arsenic | Health-Based | N/A | 0.013 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Sep 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Sep 30, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Sep 30, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Sep 30, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Sep 30, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Sep 30, 2024 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.016 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2024 | Resolved | N/A |
| E. COLI | Monitoring | 0 | N/A | May 31, 2024 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2024 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2024 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13.2 | Mar 31, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13.2 | Mar 31, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13.2 | Mar 31, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13.2 | Mar 31, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13.2 | Mar 31, 2024 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13.2 | Mar 31, 2024 | Resolved | N/A |
| E. COLI | Monitoring | 0 | N/A | Dec 31, 2023 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Arsenic | Health-Based | N/A | 0.016 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Dec 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Health-Based | N/A | 21 | Dec 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 21 | Dec 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 21 | Dec 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 21 | Dec 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 21 | Dec 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 21 | Dec 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 21 | Dec 31, 2023 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 29, 2023 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 29, 2023 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Dec 29, 2023 | Active | N/A |
| E. COLI | Monitoring | 0 | N/A | Dec 12, 2023 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| E. COLI | Monitoring | 0 | N/A | Dec 12, 2023 | Active | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2023 | Resolved | N/A |
| E. COLI | Monitoring | 0 | N/A | Nov 30, 2023 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Active | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Sep 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Sep 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Sep 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Sep 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Sep 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Sep 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Sep 30, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2023 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2023 | Resolved | Eye and nose irritation; stomach discomfort |
| E. COLI | Monitoring | 0 | N/A | Jun 30, 2023 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Arsenic | Health-Based | N/A | 0.015 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Jun 30, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2023 | Active | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Jun 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Jun 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Jun 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Jun 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Jun 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Jun 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Jun 30, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 20 | Jun 30, 2023 | Resolved | N/A |
| E. COLI | Monitoring | 0 | N/A | May 31, 2023 | Resolved | Severe gastrointestinal illness; may be fatal in vulnerable populations |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | May 31, 2023 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.015 | Mar 31, 2023 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Mar 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Mar 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Mar 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Mar 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Mar 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Mar 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Mar 31, 2023 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Mar 31, 2023 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 25, 2023 | Active | N/A |
| Chlorine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Arsenic | Health-Based | N/A | 0.014 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.014 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.014 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.014 | Dec 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Liver problems; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Increased risk of cancer |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Dec 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 13 | Dec 31, 2022 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.012 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.012 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.012 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.012 | Sep 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Sep 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Sep 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Sep 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Sep 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Sep 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Sep 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 14 | Sep 30, 2022 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Sep 30, 2022 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| TTHM | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Monitoring | N/A | N/A | Jul 31, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Jun 30, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2022 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Combined Uranium | Monitoring | N/A | N/A | Jun 30, 2022 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Apr 14, 2022 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Apr 14, 2022 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Apr 14, 2022 | Resolved | N/A |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Health-Based | N/A | N/A | Apr 14, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 1, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 1, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 1, 2022 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Apr 1, 2022 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Mar 31, 2022 | Resolved | Eye and nose irritation; stomach discomfort |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Mar 31, 2022 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.013 | Mar 31, 2022 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Mar 31, 2022 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Dec 31, 2021 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| o-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,1-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Toluene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Tetrachloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Carbon tetrachloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Benzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Anemia; decrease in blood platelets; increased risk of cancer |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Styrene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Ethylbenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| CHLOROBENZENE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,1,2-Trichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloropropane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| trans-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| p-Dichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| DICHLOROMETHANE | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Xylenes, Total | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2,4-Trichlorobenzene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Increased risk of cancer |
| Vinyl chloride | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Increased risk of cancer |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| 1,2-Dichloroethane | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| cis-1,2-Dichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Trichloroethylene | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Liver problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.017 | Dec 31, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Dec 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Dec 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Dec 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Nov 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Oct 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 7 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Lead and Copper Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Arsenic | Health-Based | N/A | 0.016 | Sep 30, 2021 | Resolved | Skin damage; circulatory system problems; increased risk of cancer |
| Combined Radium (-226 and -228) | Health-Based | N/A | 18 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 18 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 18 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 18 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 18 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 18 | Sep 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 18 | Sep 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Chlorine | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | Eye and nose irritation; stomach discomfort |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Revised Total Coliform Rule | Monitoring | N/A | N/A | Sep 30, 2021 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Aug 23, 2021 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Aug 23, 2021 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Aug 23, 2021 | Resolved | N/A |
| Groundwater Rule | Health-Based | N/A | N/A | Aug 23, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jul 3, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Jul 3, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 6 | Jun 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 15 | Jun 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Consumer Confidence Rule | Monitoring | N/A | N/A | Jun 30, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Mar 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Mar 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Mar 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Mar 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Mar 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Mar 31, 2021 | Resolved | N/A |
| Combined Radium (-226 and -228) | Health-Based | N/A | 11 | Mar 31, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 14, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Mar 14, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 24, 2021 | Resolved | N/A |
| Public Notice | Monitoring | N/A | N/A | Feb 24, 2021 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2025(30)
TTHM
27
Total Haloacetic Acids (HAA5)
27
Revised Total Coliform Rule
3A
LEAD AND COPPER RULE REVISIONS
4H
LEAD AND COPPER RULE REVISIONS
4H
Arsenic
02
Arsenic
02
Arsenic
02
Lead and Copper Rule
52
Lead and Copper Rule
52
Consumer Confidence Rule
72
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
TTHM
27
TTHM
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
4G
2024(99)
Total Haloacetic Acids (HAA5)
27
TTHM
27
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
03
Arsenic
03
Arsenic
03
Lead and Copper Rule
66
Lead and Copper Rule
66
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
4G
LEAD AND COPPER RULE REVISIONS
2E
LEAD AND COPPER RULE REVISIONS
2E
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
TTHM
27
TTHM
27
TTHM
27
TTHM
27
Lead and Copper Rule
52
Lead and Copper Rule
52
Lead and Copper Rule
52
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Combined Uranium
03
Combined Uranium
03
Combined Uranium
03
Combined Uranium
03
Combined Radium (-226 and -228)
03
Consumer Confidence Rule
71
Consumer Confidence Rule
71
E. COLI
19
Revised Total Coliform Rule
3A
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
2023(78)
E. COLI
19
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Lead and Copper Rule
66
Lead and Copper Rule
66
Lead and Copper Rule
66
E. COLI
34
E. COLI
34
Revised Total Coliform Rule
3A
E. COLI
19
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Consumer Confidence Rule
72
Lead and Copper Rule
52
Lead and Copper Rule
52
Lead and Copper Rule
52
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
TTHM
27
TTHM
27
TTHM
27
TTHM
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
E. COLI
19
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Consumer Confidence Rule
71
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
E. COLI
19
Revised Total Coliform Rule
3A
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Public Notice
75
2022(168)
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Nitrate
03
Nitrate
03
Nitrate
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Trichloroethylene
03
Trichloroethylene
03
Trichloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Benzene
03
Benzene
03
Benzene
03
1,2,4-Trichlorobenzene
03
1,2,4-Trichlorobenzene
03
1,2,4-Trichlorobenzene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
Xylenes, Total
03
Xylenes, Total
03
Xylenes, Total
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
Toluene
03
Toluene
03
Toluene
03
Styrene
03
Styrene
03
Styrene
03
Ethylbenzene
03
CHLOROBENZENE
03
CHLOROBENZENE
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
Vinyl chloride
03
Vinyl chloride
03
Vinyl chloride
03
Ethylbenzene
03
Ethylbenzene
03
CHLOROBENZENE
03
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Uranium
03
Combined Uranium
03
Combined Uranium
03
Combined Uranium
03
TTHM
27
TTHM
27
TTHM
27
TTHM
27
TTHM
27
TTHM
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Total Haloacetic Acids (HAA5)
27
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Chlorine
27
Chlorine
27
Chlorine
27
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
02
Combined Uranium
03
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Combined Uranium
03
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Stage 1 Disinfectants and Disinfection Byproducts Rule
12
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
2021(195)
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
o-Dichlorobenzene
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
o-Dichlorobenzene
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
1,1,1-Trichloroethane
03
Toluene
03
Toluene
03
Toluene
03
Toluene
03
Nitrate
03
Nitrate
03
Nitrate
03
Nitrate
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
Tetrachloroethylene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
1,1-Dichloroethylene
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Carbon tetrachloride
03
Benzene
03
Benzene
03
Benzene
03
Benzene
03
Styrene
03
Styrene
03
Styrene
03
Styrene
03
Ethylbenzene
03
Ethylbenzene
03
Ethylbenzene
03
Ethylbenzene
03
CHLOROBENZENE
03
CHLOROBENZENE
03
CHLOROBENZENE
03
CHLOROBENZENE
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
1,1,2-Trichloroethane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
1,2-Dichloropropane
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
trans-1,2-Dichloroethylene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
p-Dichlorobenzene
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
DICHLOROMETHANE
03
Xylenes, Total
03
Xylenes, Total
03
Xylenes, Total
03
Xylenes, Total
03
1,2,4-Trichlorobenzene
03
1,2,4-Trichlorobenzene
03
1,2,4-Trichlorobenzene
03
1,2,4-Trichlorobenzene
03
Vinyl chloride
03
Vinyl chloride
03
Vinyl chloride
03
Vinyl chloride
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
1,2-Dichloroethane
03
Trichloroethylene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
cis-1,2-Dichloroethylene
03
Trichloroethylene
03
Trichloroethylene
03
Trichloroethylene
03
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Revised Total Coliform Rule
3A
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Combined Radium (-226 and -228)
03
Lead and Copper Rule
52
Lead and Copper Rule
52
Lead and Copper Rule
52
Lead and Copper Rule
52
Arsenic
02
Arsenic
02
Arsenic
02
Arsenic
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Chlorine
27
Revised Total Coliform Rule
3A
Revised Total Coliform Rule
3A
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
Groundwater Rule
45
Public Notice
75
Public Notice
75
Consumer Confidence Rule
72
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Consumer Confidence Rule
72
Consumer Confidence Rule
72
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Consumer Confidence Rule
71
Consumer Confidence Rule
71
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Combined Radium (-226 and -228)
02
Public Notice
75
Public Notice
75
Public Notice
75
Public Notice
75
How Does This Compare?
DENVER (80237) has 570 recorded violations, including 224 health-based. 33 remain unresolved. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.