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WORTHING

PWS ID: SD4600377 · WORTHING, South Dakota 57077

WORTHING serves 939 people in WORTHING, South Dakota using Groundwater water sources. It has 124 recorded EPA violations, including 16 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: WORTHING

WORTHING is a local-owned community water system that delivers drinking water to 939 residents in WORTHING, South Dakota (Lincoln County) through 378 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 124 total violations for this system , of which 16 (13%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 93 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 14 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across South Dakota, EPA tracks 654 public water systems serving 915,901 people, with 56,254 cumulative violations and 8,399 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 86 violations. WORTHING's 124 violations sit above the South Dakota average. Statewide, 42 of 49 UCMR5-tested systems have reported PFAS detections (85.7%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
939
Total Violations
124
Health-Based Violations
16
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
378
County
Lincoln
School/Daycare
No
MCL Violations
8
Monitoring Violations
93
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 14 2006
Coliform (TCR) MCL 8 1996
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 8 2023
Lead and Copper Rule MR 5 2005
Chlorine MR 5 2021
Revised Total Coliform Rule MON 3 2021
Cadmium MR 2 2003
Chromium MR 2 2003
Fluoride MR 2 2003
Selenium MR 2 2003
Antimony, Total MR 2 2003
Nickel MR 2 2003
cis-1,2-Dichloroethylene MR 2 1993
1,1,1-Trichloroethane MR 2 1993
Tetrachloroethylene MR 2 1993
Ethylbenzene MR 2 1993
DICHLOROMETHANE MR 2 1993
1,1,2-Trichloroethane MR 2 1993
Xylenes, Total MR 2 1993
Carbon tetrachloride MR 2 1993
CHLOROBENZENE MR 2 1993
o-Dichlorobenzene MR 2 1993
trans-1,2-Dichloroethylene MR 2 1993
Benzene MR 2 1993
Coliform (TCR) Other 2 1996
Barium MR 2 2003
1,1-Dichloroethylene MR 2 1993
Styrene MR 2 1993
1,2,4-Trichlorobenzene MR 2 1993
1,2-Dichloroethane MR 2 1993

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for WORTHING.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID SD4600377 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

South Dakota Drinking Water Authority

South Dakota's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find SD regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2023 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 8 SDWIS / SD4600377 / 0400
2021 Chlorine MR 5 SDWIS / SD4600377 / 0999
2021 Revised Total Coliform Rule MON 3 SDWIS / SD4600377 / 8000
2006 Coliform (TCR) MR 14 SDWIS / SD4600377 / 3100
2006 Public Notice Other 1 SDWIS / SD4600377 / 7500
2005 Lead and Copper Rule MR 5 SDWIS / SD4600377 / 5000
2003 Cadmium MR 2 SDWIS / SD4600377 / 1015
2003 Chromium MR 2 SDWIS / SD4600377 / 1020
2003 Fluoride MR 2 SDWIS / SD4600377 / 1025
2003 Selenium MR 2 SDWIS / SD4600377 / 1045
2003 Antimony, Total MR 2 SDWIS / SD4600377 / 1074
2003 Nickel MR 2 SDWIS / SD4600377 / 1036
2003 Barium MR 2 SDWIS / SD4600377 / 1010
2003 Arsenic MR 2 SDWIS / SD4600377 / 1005
2003 Thallium, Total MR 2 SDWIS / SD4600377 / 1085

How WORTHING Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric WORTHING South Dakota avg Federal benchmark
Total violations 124 86 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 16 12.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 85.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 939 1,400 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 654 regulated public water systems in South Dakota.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is WORTHING water safe to drink? ▼
WORTHING (PWS ID: SD4600377) has 124 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 939 people using Groundwater sources.
How many people does WORTHING serve? ▼
WORTHING serves 939 people in WORTHING, South Dakota. It is a Local-owned system using Groundwater water sources with 378 service connections.
What type of violations does WORTHING have? ▼
WORTHING has 124 total violations: 16 health-based violations (MCL exceedances or treatment failures), 93 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in WORTHING water? ▼
No PFAS testing data is available for WORTHING under the EPA's UCMR5 monitoring program.
What water source does WORTHING use? ▼
WORTHING uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial