States ›Connecticut ›Hartford County ›Southington

Southington, CT Tap Water Quality 2026

Water quality report for Southington, CT — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Southington's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Southington Water Department PWSID: CT1310011 Updated: 2026 Q2
⚠️

PFAS above the federal limit at 3 of 6 sampling points

Lead was not detected and no violations are open. However, PFAS exceeds the federal limit at 3 of 6 sampling points, running as high as 1.88 times the limit.

D

Southington earns a D for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: not detected
PFAS above the federal limit at 3 of 6 sampling points
239 violations since 2015, 0 health-based
No violations currently open
Southington's lead level vs. all Connecticut community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Connecticut utilities
Population Served
40656
~13665 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
239 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
122.3% of EPA action level
1,590 ppb
Action level: 1,300 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
CARBON, TOTAL MONITORING AND REPORTING — TT 2025 Resolved
CARBON, TOTAL MONITORING AND REPORTING — TT 2025 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Public Notice OTHER — — 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Consumer Confidence Rule OTHER — — 2023 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2023 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2022 Resolved
E. COLI MONITORING AND REPORTING — 0 2022 Resolved
E. COLI MONITORING AND REPORTING — 0 2022 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2017 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2017 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2017 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2017 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2017 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2017 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2017 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2017 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2017 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2017 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2017 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2017 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2017 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2017 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2017 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2017 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2017 Resolved
Aldicarb MONITORING AND REPORTING — — 2017 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2017 Resolved
LASSO MONITORING AND REPORTING — — 2017 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2017 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2017 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2017 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2017 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2017 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2017 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2017 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2017 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2017 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2017 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2017 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2017 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2017 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2017 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2017 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2017 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2017 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2017 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2017 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2017 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2017 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2017 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2017 Resolved
Nitrite MONITORING AND REPORTING — 1 mg/L 2017 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2017 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2017 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2017 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2017 Resolved
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2017 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2017 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2017 Resolved
Nickel MONITORING AND REPORTING — — 2017 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2017 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2017 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2017 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2017 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2017–2019 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2017–2019 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2017–2019 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2017–2019 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2017–2019 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2017–2019 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2017–2019 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2017–2019 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2017–2019 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Resolved
Aldicarb MONITORING AND REPORTING — — 2017–2019 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Resolved
LASSO MONITORING AND REPORTING — — 2017–2019 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2017–2019 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2017–2019 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2017–2019 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2017–2019 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2017–2019 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2017–2019 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2017–2019 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2017–2019 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2017–2019 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2017–2019 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2017–2019 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2017–2019 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2017–2019 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Resolved
Aldicarb MONITORING AND REPORTING — — 2017–2019 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Resolved
LASSO MONITORING AND REPORTING — — 2017–2019 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2017–2019 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2017–2019 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2017–2019 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2017–2019 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Resolved
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Resolved
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Resolved
Diquat MONITORING AND REPORTING — 0.02 mg/L 2017–2019 Resolved
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2017–2019 Resolved
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2017–2019 Resolved
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Resolved
Simazine MONITORING AND REPORTING — 0.004 mg/L 2017–2019 Resolved
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2017–2019 Resolved
Picloram MONITORING AND REPORTING — 0.5 mg/L 2017–2019 Resolved
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2017–2019 Resolved
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Resolved
Aldicarb sulfoxide MONITORING AND REPORTING — — 2017–2019 Resolved
Aldicarb sulfone MONITORING AND REPORTING — — 2017–2019 Resolved
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Resolved
Aldicarb MONITORING AND REPORTING — — 2017–2019 Resolved
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Resolved
LASSO MONITORING AND REPORTING — — 2017–2019 Resolved
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2017–2019 Resolved
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2017–2019 Resolved
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Resolved
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Resolved
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Resolved
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2017–2019 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2017–2019 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Resolved
Endrin MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Archived
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Archived
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Archived
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Archived
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Archived
Diquat MONITORING AND REPORTING — 0.02 mg/L 2017–2019 Archived
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2017–2019 Archived
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2017–2019 Archived
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Archived
Simazine MONITORING AND REPORTING — 0.004 mg/L 2017–2019 Archived
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2017–2019 Archived
Picloram MONITORING AND REPORTING — 0.5 mg/L 2017–2019 Archived
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2017–2019 Archived
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Archived
Aldicarb sulfoxide MONITORING AND REPORTING — — 2017–2019 Archived
Aldicarb sulfone MONITORING AND REPORTING — — 2017–2019 Archived
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Archived
Aldicarb MONITORING AND REPORTING — — 2017–2019 Archived
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Archived
LASSO MONITORING AND REPORTING — — 2017–2019 Archived
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2017–2019 Archived
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Archived
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2017–2019 Archived
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Archived
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Archived
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Archived
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Archived
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2017–2019 Archived
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Archived
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2017–2019 Archived
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Archived
Endrin MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Archived
BHC-GAMMA MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Archived
Methoxychlor MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Archived
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Archived
Dalapon MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Archived
Diquat MONITORING AND REPORTING — 0.02 mg/L 2017–2019 Archived
Glyphosate MONITORING AND REPORTING — 0.7 mg/L 2017–2019 Archived
Di(2-ethylhexyl) adipate MONITORING AND REPORTING — 0.4 mg/L 2017–2019 Archived
OXAMYL MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Archived
Simazine MONITORING AND REPORTING — 0.004 mg/L 2017–2019 Archived
Di(2-ethylhexyl) phthalate MONITORING AND REPORTING — 0.006 mg/L 2017–2019 Archived
Picloram MONITORING AND REPORTING — 0.5 mg/L 2017–2019 Archived
Dinoseb MONITORING AND REPORTING — 0.007 mg/L 2017–2019 Archived
Hexachlorocyclopentadiene MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Archived
Aldicarb sulfoxide MONITORING AND REPORTING — — 2017–2019 Archived
Aldicarb sulfone MONITORING AND REPORTING — — 2017–2019 Archived
Carbofuran MONITORING AND REPORTING — 0.04 mg/L 2017–2019 Archived
Aldicarb MONITORING AND REPORTING — — 2017–2019 Archived
Atrazine MONITORING AND REPORTING — 0.003 mg/L 2017–2019 Archived
LASSO MONITORING AND REPORTING — — 2017–2019 Archived
Heptachlor MONITORING AND REPORTING — 0.0004 mg/L 2017–2019 Archived
Heptachlor epoxide MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Archived
2,4-D MONITORING AND REPORTING — 0.07 mg/L 2017–2019 Archived
2,4,5-TP MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Archived
HEXACHLOROBENZENE MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Archived
Benzo(a)pyrene MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Archived
Pentachlorophenol MONITORING AND REPORTING — 0.001 mg/L 2017–2019 Archived
Total Polychlorinated Biphenyls (PCB) MONITORING AND REPORTING — 0.0005 mg/L 2017–2019 Archived
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2017–2019 Archived
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2017–2019 Archived
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Archived
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2016 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2016 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

239 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Southington Water Department
PWSID CT1310011
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 40,656
Service connections 13,665
Systems serving this area 7
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Southington tap water safe to drink? ▼
It meets most federal standards, but PFAS exceeds the federal limit at 3 of 6 sampling points. No violations are currently open.
Does Southington water have PFAS? ▼
Yes. PFAS exceeds the federal limit at 3 of 6 sampling points, running as high as 1.88 times the limit. Limits are enforced on a running annual average at each sampling point, not on a single sample.
Who supplies water to Southington? ▼
Southington Water Department (PWSID CT1310011), one of 7 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-07-29. Inspectors recorded 2 significant deficiencies.

What Should Southington Residents Do?

1
Consider a reverse-osmosis filter
Reverse osmosis removes more than 95% of PFAS. Standard carbon pitchers do not.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in Connecticut

Hartford, Ct Tap Water Quality 2026 Hartford New Britain, Ct Tap Water Quality 2026 Hartford West Hartford, Ct Tap Water Quality 2026 Hartford Bristol, Ct Tap Water Quality 2026 Hartford Manchester, Ct Tap Water Quality 2026 Hartford East Hartford, Ct Tap Water Quality 2026 Hartford