Public water system · SD4600152

Active

Hecla

At a glance

Hecla (PWSID SD4600152) is an active community water system in Brown County, South Dakota. It reports serving 200 people through 190 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, 11 are health-based, and the most recent began in February 2024.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

200

Service connections

190

Primary source

GWP

Purchased groundwater

System type

CWS

Community water system

System record

PWSIDSD4600152

System typeCommunity water system

Activity statusActive

Population served200

Service connections190

Primary water sourcePurchased groundwater

Owner typeLocal government

Primacy agencySD state drinking water program

City servedHecla

StateSouth Dakota

ZIP57446

CountyBrown County

How does Hecla compare with other water systems in Brown County?

By EPA's size categories, Hecla is a very small system (500 people or fewer). Brown County has 21 active public water systems. Its population served is well below the county average of 1,813 people per system, and accounts for 0.5% of the 38,073 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 Hecla 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 Hecla?

EPA lists Hecla 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. 8 of the 21 active systems in Brown County (38%) are also owned by a local government.

Does Hecla have drinking water violations?

Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in February 2024. The violations listed here began between April 2006 and February 2024. By type: 10 contaminant level above the legal limit, 1 required treatment not met and 1 monitoring and reporting. The contaminant or rule involved most often is Arsenic (11 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
2024-02-28	Required treatment not metTreatment Technique No Certif. Operator · code 12	Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400	Yes	Resolved
2008-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2008-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2008-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2008-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2007-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2007-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2007-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2007-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2006-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2006-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Arseniccode 1005	Yes	Resolved
2006-04-01	Monitoring and reportingMonitoring, Regular · code 03	Arseniccode 1005	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.

Hecla: frequently asked questions

Who runs Hecla?

Hecla (PWSID SD4600152) is a community water system owned by a local government. It is regulated by the SD state drinking water program.

How many people does Hecla serve?

Hecla reports serving 200 people through 190 service connections in Brown County, South Dakota.

Where does Hecla 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 Hecla have any drinking water violations?

Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in February 2024. 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 Hecla'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, 11 are health-based, and the most recent began in February 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the SD state drinking water program.

Where can I find Hecla's water quality report?

As a community water system, Hecla 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 Brown County

Water system	County	Population served	Type	Source
Aberdeen	Brown	27,989	Community	Surface water
Brown-Day-Marshall Rws	Brown + 2 more	5,673	Community	Groundwater
Groton	Brown	1,380	Community	Purchased surface water
Warner	Brown	485	Community	Purchased surface water
Lakeside Estates	Brown	460	Community	Purchased surface water
Country Village Park	Brown	340	Community	Purchased surface water

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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, “Hecla, PWSID SD4600152, South Dakota”, https://aquacensus.com/water-systems/south-dakota/hecla-sd4600152 (data as of October 1, 2026).