Water Quality in RAPID CITY, SD (57702)

EPA violation data for public water systems serving ZIP code 57702.

186

Total Violations

Health-Based

166

Monitoring / Reporting

178

Resolved

What does this mean?

178 of 186 violations have been resolved. 20 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 166 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.

Water systems: 91 Population served: 16,025

Violations Detail (186 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-Based	N/A	N/A	Jul 6, 2025	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 1, 2024	Active	N/A
Public Notice	Monitoring	N/A	N/A	Dec 1, 2024	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 31, 2024	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 22, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 22, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Active	N/A
E. COLI	Monitoring	0	N/A	Jun 22, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 22, 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-Based	N/A	N/A	May 20, 2024	Resolved	N/A
Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-Based	N/A	N/A	May 20, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 8, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 8, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increased risk of cancer
Vinyl chloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Tetrachloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Carbon tetrachloride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
Trichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Liver problems; increased risk of cancer
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,1-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Ethylbenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
DICHLOROMETHANE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2,4-Trichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Xylenes, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
CHLOROBENZENE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Styrene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
o-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloropropane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
p-Dichlorobenzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,2-Dichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Toluene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
cis-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
1,1,2-Trichloroethane	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
trans-1,2-Dichloroethylene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Benzene	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Anemia; decrease in blood platelets; increased risk of cancer
Chlorine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
E. COLI	Monitoring	0	N/A	Dec 15, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Dec 15, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Dec 15, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Dec 10, 2023	Active	N/A
Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-Based	N/A	N/A	Nov 28, 2023	Resolved	N/A
Stage 1 Disinfectants and Disinfection Byproducts Rule	Health-Based	N/A	N/A	Nov 28, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 11, 2023	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 30, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 10, 2023	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 2, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 2, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 14, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 14, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 14, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 14, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2022	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
Public Notice	Monitoring	N/A	N/A	Oct 4, 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
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
Nitrate	Monitoring	N/A	N/A	Sep 30, 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	Sep 30, 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	Sep 30, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	16	Jun 30, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	16	Jun 30, 2021	Resolved	N/A
Gross Alpha, Excl. Radon and U	Health-Based	N/A	16	Jun 30, 2021	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	Eye and nose irritation; stomach discomfort

Lead & Copper Levels

Violation Timeline

2025(5)

Stage 1 Disinfectants and Disinfection Byproducts Rule

Jul 6Active

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

2024(39)

Public Notice

Dec 1Active

Public Notice

Dec 1Active

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Public Notice

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Public Notice

Aug 31Active

Revised Total Coliform Rule

Aug 22Resolved

Revised Total Coliform Rule

Aug 22Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Consumer Confidence Rule

Jun 30Active

E. COLI

Jun 22Resolved

E. COLI

Jun 22Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

May 20Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

May 20Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Public Notice

Mar 8Resolved

Public Notice

Mar 8Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

2023(90)

trans-1,2-Dichloroethylene

Dec 31Resolved

cis-1,2-Dichloroethylene

Dec 31Resolved

Benzene

Dec 31Resolved

Vinyl chloride

Dec 31Resolved

Vinyl chloride

Dec 31Resolved

Tetrachloroethylene

Dec 31Resolved

Tetrachloroethylene

Dec 31Resolved

Carbon tetrachloride

Dec 31Resolved

Carbon tetrachloride

Dec 31Resolved

Trichloroethylene

Dec 31Resolved

Trichloroethylene

Dec 31Resolved

1,1,1-Trichloroethane

Dec 31Resolved

1,1,1-Trichloroethane

Dec 31Resolved

Ethylbenzene

Dec 31Resolved

Ethylbenzene

Dec 31Resolved

DICHLOROMETHANE

Dec 31Resolved

DICHLOROMETHANE

Dec 31Resolved

1,2,4-Trichlorobenzene

Dec 31Resolved

1,2,4-Trichlorobenzene

Dec 31Resolved

Xylenes, Total

Dec 31Resolved

Xylenes, Total

Dec 31Resolved

1,1-Dichloroethylene

Dec 31Resolved

1,1-Dichloroethylene

Dec 31Resolved

CHLOROBENZENE

Dec 31Resolved

CHLOROBENZENE

Dec 31Resolved

Styrene

Dec 31Resolved

Styrene

Dec 31Resolved

o-Dichlorobenzene

Dec 31Resolved

o-Dichlorobenzene

Dec 31Resolved

1,2-Dichloropropane

Dec 31Resolved

1,2-Dichloropropane

Dec 31Resolved

p-Dichlorobenzene

Dec 31Resolved

p-Dichlorobenzene

Dec 31Resolved

1,2-Dichloroethane

Dec 31Resolved

1,2-Dichloroethane

Dec 31Resolved

Toluene

Dec 31Resolved

Toluene

Dec 31Resolved

cis-1,2-Dichloroethylene

Dec 31Resolved

1,1,2-Trichloroethane

Dec 31Resolved

1,1,2-Trichloroethane

Dec 31Resolved

trans-1,2-Dichloroethylene

Dec 31Resolved

Benzene

Dec 31Resolved

Chlorine

Dec 31Resolved

Chlorine

Dec 31Resolved

E. COLI

Dec 15Resolved

E. COLI

Dec 15Resolved

E. COLI

Dec 15Resolved

Public Notice

Dec 10Active

Stage 1 Disinfectants and Disinfection Byproducts Rule

Nov 28Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

Nov 28Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Public Notice

Sep 11Active

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Public Notice

Jun 10Active

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

How Does This Compare?

RAPID CITY (57702) has 186 recorded violations, including 20 health-based. 8 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

One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.

Targets:Nitrate, Nitrite, Dissolved Solids

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

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

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in RAPID CITY, SD (57702)

What does this mean?

Violations Detail (186 total)

Lead & Copper Levels

Violation Timeline

2025(5)

2024(39)

2023(90)

2022(25)

2021(27)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

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