HECLA

South Dakota — Community Water System — PWSID: SD4600152

System Information

PWSID	SD4600152
System Name	HECLA
System Type	Community Water System
Water Source	Ground Water Purchased
Activity Status	Active
Owner Type	Local
EPA Region	08
Serves School	No
Wholesaler	No
First Reported	Feb 13, 1979
Last Reported	Dec 9, 2025

Location & Contact

State	South Dakota
City	HECLA
ZIP Code	57446
Address	PO BOX 188
Organization	HECLA
Phone	6059942333

Population & Service

Population Served	208
Service Connections	189

Drinking Water Violations (48)

This water system has 48 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Contaminant	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Feb 28, 2024	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Apr 18, 2024	Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 28, 2024	—	Stage 1 Disinfectants and Disinfection Byproducts Rule	TT	Yes	No	—	—	—	Resolved	Apr 18, 2024	Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2008	Dec 31, 2008	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Dec 31, 2008	Arsenic Rule
Oct 1, 2008	Dec 31, 2008	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Dec 31, 2008	Arsenic Rule
Oct 1, 2008	Dec 31, 2008	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Dec 31, 2008	Arsenic Rule
Oct 1, 2008	Dec 31, 2008	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Dec 31, 2008	Arsenic Rule
Jul 1, 2008	Sep 30, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Sep 30, 2008	Arsenic Rule
Jul 1, 2008	Sep 30, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Sep 30, 2008	Arsenic Rule
Jul 1, 2008	Sep 30, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Sep 30, 2008	Arsenic Rule
Jul 1, 2008	Sep 30, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Sep 30, 2008	Arsenic Rule
Apr 1, 2008	Jun 30, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Jun 30, 2008	Arsenic Rule
Apr 1, 2008	Jun 30, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Jun 30, 2008	Arsenic Rule
Apr 1, 2008	Jun 30, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Jun 30, 2008	Arsenic Rule
Apr 1, 2008	Jun 30, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Jun 30, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Oct 1, 2007	Dec 31, 2007	Arsenic	MCL	Yes	No	.038	0.010 mg/L	—	Resolved	Dec 31, 2007	Arsenic Rule
Oct 1, 2007	Dec 31, 2007	Arsenic	MCL	Yes	No	.038	0.010 mg/L	—	Resolved	Dec 31, 2007	Arsenic Rule
Oct 1, 2007	Dec 31, 2007	Arsenic	MCL	Yes	No	.038	0.010 mg/L	—	Resolved	Dec 31, 2007	Arsenic Rule
Jul 1, 2007	Sep 30, 2007	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Sep 30, 2007	Arsenic Rule
Jul 1, 2007	Sep 30, 2007	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Sep 30, 2007	Arsenic Rule
Jul 1, 2007	Sep 30, 2007	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Sep 30, 2007	Arsenic Rule
Jul 1, 2007	Sep 30, 2007	Arsenic	MCL	Yes	No	.039	0.010 mg/L	—	Resolved	Sep 30, 2007	Arsenic Rule
Apr 1, 2007	Jun 30, 2007	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Jun 30, 2007	Arsenic Rule
Apr 1, 2007	Jun 30, 2007	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Jun 30, 2007	Arsenic Rule
Apr 1, 2007	Jun 30, 2007	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Jun 30, 2007	Arsenic Rule
Apr 1, 2007	Jun 30, 2007	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Jun 30, 2007	Arsenic Rule
Jan 1, 2007	Mar 31, 2007	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Mar 31, 2007	Arsenic Rule
Jan 1, 2007	Mar 31, 2007	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Mar 31, 2007	Arsenic Rule
Jan 1, 2007	Mar 31, 2007	Arsenic	MCL	Yes	No	.04	0.010 mg/L	—	Resolved	Mar 31, 2007	Arsenic Rule
Oct 1, 2006	Dec 31, 2006	Arsenic	MCL	Yes	No	.038	0.010 mg/L	—	Resolved	Dec 31, 2006	Arsenic Rule
Oct 1, 2006	Dec 31, 2006	Arsenic	MCL	Yes	No	.038	0.010 mg/L	—	Resolved	Dec 31, 2006	Arsenic Rule
Oct 1, 2006	Dec 31, 2006	Arsenic	MCL	Yes	No	.038	0.010 mg/L	—	Resolved	Dec 31, 2006	Arsenic Rule
Jul 1, 2006	Sep 30, 2006	Arsenic	MCL	Yes	No	.041	0.010 mg/L	—	Resolved	Sep 30, 2006	Arsenic Rule
Jul 1, 2006	Sep 30, 2006	Arsenic	MCL	Yes	No	.041	0.010 mg/L	—	Resolved	Sep 30, 2006	Arsenic Rule
Apr 1, 2006	Jun 30, 2006	Arsenic	MCL	Yes	No	.041	0.010 mg/L	—	Resolved	Jun 30, 2006	Arsenic Rule
Apr 1, 2006	Jun 30, 2006	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2006	Arsenic Rule
Apr 1, 2006	Jun 30, 2006	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2006	Arsenic Rule
Apr 1, 2006	Jun 30, 2006	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2006	Arsenic Rule
Jan 1, 2006	Mar 31, 2006	Arsenic	MCL	Yes	No	.041	0.010 mg/L	—	Resolved	Mar 31, 2006	Arsenic Rule
Jan 1, 2006	Mar 31, 2006	Arsenic	MCL	Yes	No	.041	0.010 mg/L	—	Resolved	Mar 31, 2006	Arsenic Rule
Jan 1, 2006	Mar 31, 2006	Arsenic	MCL	Yes	No	.041	0.010 mg/L	—	Resolved	Mar 31, 2006	Arsenic Rule
Jan 1, 2006	Mar 31, 2006	Arsenic	MCL	Yes	No	.041	0.010 mg/L	—	Resolved	Mar 31, 2006	Arsenic Rule
Jul 1, 1993	Jul 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 1993	Total Coliform Rule
Jul 1, 1976	Jun 30, 1980	Combined Radium (-226 and -228)	MR	No	No	—	5 pCi/L	—	Archived	Jun 30, 1980	Radionuclides and Revised Rad Rule
Jul 1, 1976	Jun 30, 1980	Gross Alpha, Excl. Radon and U	MR	No	No	—	15 pCi/L	—	Archived	Jun 30, 1980	Radionuclides and Revised Rad Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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