SD / Sioux Falls
SD · Tap water records
Sioux Falls tap water, in plain English
Here is what the EPA's own data shows about tap water in Sioux Falls. According to EPA SDWIS data retrieved June 2026, Sioux Falls is served by 8 active community water systems, together reported to serve about 223,381 people.
As of June 2026, EPA records show 15 violations across the community water system(s) serving Sioux Falls, going back to the earliest EPA record. 7 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.
What the EPA has on record, by system
Sioux Falls
216,462 served · surface water · PWSID SD4600294 - Health-based Stage 1 Disinfectants and Disinfection Byproducts Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in December 2009. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
Lincoln County Rural Water System
5,965 served · groundwater · PWSID SD4600304 - Monitoring Chlorine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times in April 2024. EPA records do not show all of these as returned to compliance.
Pine Lake Hills
320 served · groundwater · PWSID SD4600624 - Health-based Stage 1 Disinfectants and Disinfection Byproducts Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 3 times between February 2012 and July 2025. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
Valley View Estates
230 served · groundwater · PWSID SD4600300 - Health-based Stage 1 Disinfectants and Disinfection Byproducts Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times between July 2007 and August 2021. The EPA record for these does not include a measured level. EPA records do not show all of these as returned to compliance.
- Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in March 2020. All have since returned to compliance, per EPA records.
- Monitoring Revised Total Coliform Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in February 2019. All have since returned to compliance, per EPA records.
- Monitoring Chlorine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in January 2019. All have since returned to compliance, per EPA records.
- Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2001. All have since returned to compliance, per EPA records.
Morrow Crossing Mhc
150 served · groundwater · PWSID MI0040247 As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Skyline Heights
110 served · surface water · PWSID SD4600297 - Health-based Stage 1 Disinfectants and Disinfection Byproducts Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in July 2010. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
Prospect Manor Mhc
94 served · groundwater · PWSID MI0040490 As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
Beulah Land Water
50 served · groundwater · PWSID WY5601692 As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
What this means
A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.
This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.
Source: U.S. EPA Envirofacts SDWIS, retrieved June 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.