Public water system · SD4600377
ActiveWorthing
At a glance
Worthing (PWSID SD4600377) is an active community water system in Lincoln County, South Dakota. It reports serving 939 people through 378 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in March 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
939
Service connections
378
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Worthing compare with other water systems in Lincoln County?
By EPA's size categories, Worthing is a small system (501 to 3,300 people). Lincoln County has 9 active public water systems. Its population served is well below the county average of 3,986 people per system, and accounts for 2.6% of the 35,871 people reported by systems filed under the county. Across South Dakota, the 699 active systems average 1,387 people each. Nationally, the average active community water system reports serving 6,703 people, so Worthing is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. South Dakota has 510 active community water systems, 73% of the state's 699 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 100 South Dakota systems (14%) list purchased groundwater as their primary source.
Who owns and regulates Worthing?
EPA lists Worthing as owned by a local government. The SD state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 9 active systems in Lincoln County (67%) are also owned by a local government.
Does Worthing have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in March 2023. The violations listed here began between January 2003 and March 2023. By type: 6 monitoring and reporting, 4 required treatment not met, 1 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Stage 1 Disinfectants and Disinfection Byproducts Rule (4 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2023-03-30 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2021-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2018-04-01 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2014-02-18 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2010-09-13 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2009-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2006-10-03 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2006-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Resolved |
| 2003-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nickelcode 1036 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Worthing: frequently asked questions
Who runs Worthing?
Worthing (PWSID SD4600377) is a community water system owned by a local government. It is regulated by the SD state drinking water program.
How many people does Worthing serve?
Worthing reports serving 939 people through 378 service connections in Lincoln County, South Dakota.
Where does Worthing get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Worthing have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in March 2023. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Worthing's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in March 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.
Where can I find Worthing's water quality report?
As a community water system, Worthing must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Lincoln County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Harrisburg | Lincoln | 10,297 | Community | Purchased groundwater |
| Tea | Lincoln | 7,381 | Community | Purchased groundwater |
| Lincoln County Rural Water System | Lincoln + 1 more | 5,965 | Community | Purchased groundwater |
| South Lincoln Rural Water System | Lincoln + 2 more | 5,250 | Community | Groundwater |
| Canton | Lincoln | 3,066 | Community | Groundwater |
| Lennox | Lincoln | 2,571 | Community | Purchased groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Worthing, PWSID SD4600377, South Dakota”, https://aquacensus.com/water-systems/south-dakota/worthing-sd4600377 (data as of October 1, 2026).