Piedmont Water Quality
South Dakota
According to EPA SDWIS, Piedmont, South Dakota is served by 25 community water systems covering about 5,184 people. The same extract lists 96 health-based violation records, most recently coded 5200 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Piedmont, South Dakota is delivered through 25 EPA-regulated community water systems serving an estimated 5,184 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 96 violation records across the 25 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 7 distinct EPA contaminant codes: LEAD AND COPPER RULE REVISIONS, Stage 1 Disinfectants and Disinfection Byproducts Rule, Groundwater Rule, Nitrate, Total Haloacetic Acids (HAA5) and 2 others.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the South Dakota drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| NORTHDALE SANITARY DISTRICT | 1,075 | 3 | Health |
| PIEDMONT | 971 | 1 | Health |
| WESTON HEIGHTS HOMEOWNERS ASSOCIATIO | 412 | 2 | Health |
| BLUCKSBERG MOUNTAIN #2 | 333 | 0 | Clean |
| TIMBERWOOD PARK ESTATES | 283 | 1 | Health |
| SUNSET RANCH | 263 | 0 | Clean |
| VALLEY VIEW WATER COMPANY | 248 | 4 | Health |
| SUNNYSIDE MOBILE HOME PARK II | 235 | 5 | Health |
| BLUCKSBERG MOUNTAIN #1 | 223 | 0 | Clean |
| HORSESHOE ACRES WATER ASSOCIATION | 180 | 9 | Health |
| WESTBERRY TRAILS WATER USERS ASSOC | 155 | 0 | Clean |
| ROLLING DICE SUBDIVISION | 122 | 0 | Clean |
| SPRING CANYON WATER COMPANY | 89 | 1 | Health |
| SHERIDAN LAKE HIGHLANDS, INC. | 85 | 7 | Health |
| BESTGEN ADDITION WATER COMPANY | 73 | 4 | Health |
| RIMROCK HIGHLAND ESTATES COMM ASSOC | 66 | 0 | Clean |
| AUTUMN MEADOWS SANITARY DISTRICT | 49 | 0 | Clean |
| PLEASANT VALLEY HOMEOWNERS ASSOCIATI | 48 | 0 | Clean |
| CAVALRY TRAILS HOMEOWNER ASSOCIATION | 44 | 2 | Health |
| PINE CONE ESTATES | 42 | 0 | Clean |
| VALLEY VIEW WATER ASSOCIATION | 42 | 0 | Clean |
| CEDAR GULCH 2 | 40 | 57 | Health |
| LOFTY PINES II | 38 | 0 | Clean |
| BRIDLE RIDGE ESTATES | 38 | 0 | Clean |
| GOLDEN HILLS SUBDIVISION | 30 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| WESTON HEIGHTS HOMEOWNERS ASSOCIATIO | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| SUNNYSIDE MOBILE HOME PARK II | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2024-02-28 |
| SUNNYSIDE MOBILE HOME PARK II | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2024-02-28 |
| NORTHDALE SANITARY DISTRICT | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2024-02-28 |
| NORTHDALE SANITARY DISTRICT | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2024-02-28 |
| VALLEY VIEW WATER COMPANY | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2024-02-28 |
| VALLEY VIEW WATER COMPANY | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2024-02-28 |
| HORSESHOE ACRES WATER ASSOCIATION | Groundwater Rule | 2020-12-05 |
| HORSESHOE ACRES WATER ASSOCIATION | Groundwater Rule | 2020-12-05 |
| HORSESHOE ACRES WATER ASSOCIATION | Groundwater Rule | 2020-12-05 |
| BESTGEN ADDITION WATER COMPANY | Nitrate | 2020-10-01 |
| SHERIDAN LAKE HIGHLANDS, INC. | Total Haloacetic Acids (HAA5) | 2020-04-01 |
| BESTGEN ADDITION WATER COMPANY | Nitrate | 2020-01-01 |
| SHERIDAN LAKE HIGHLANDS, INC. | Groundwater Rule | 2019-12-01 |
| SHERIDAN LAKE HIGHLANDS, INC. | Groundwater Rule | 2019-11-01 |
| HORSESHOE ACRES WATER ASSOCIATION | Groundwater Rule | 2019-08-03 |
| HORSESHOE ACRES WATER ASSOCIATION | Groundwater Rule | 2019-08-03 |
| HORSESHOE ACRES WATER ASSOCIATION | Groundwater Rule | 2019-08-03 |
| SUNNYSIDE MOBILE HOME PARK II | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2019-02-01 |
| SUNNYSIDE MOBILE HOME PARK II | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2019-02-01 |
| VALLEY VIEW WATER COMPANY | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2019-02-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2018-07-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2018-07-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2018-04-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2018-04-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2018-01-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2018-01-01 |
| HORSESHOE ACRES WATER ASSOCIATION | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2017-11-29 |
| HORSESHOE ACRES WATER ASSOCIATION | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2017-11-29 |
| HORSESHOE ACRES WATER ASSOCIATION | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2017-11-29 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2017-10-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2017-10-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2017-07-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2017-07-01 |
| SHERIDAN LAKE HIGHLANDS, INC. | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2017-06-28 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2017-04-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2017-04-01 |
| BESTGEN ADDITION WATER COMPANY | Stage 1 Disinfectants and Disinfection Byproducts Rule | 2017-02-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2017-01-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2017-01-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2016-10-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2016-10-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2016-07-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2016-07-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2016-04-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2016-04-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2016-01-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2016-01-01 |
| CEDAR GULCH 2 | Combined Radium (-226 and -228) | 2015-10-01 |
| CEDAR GULCH 2 | Gross Alpha, Excl. Radon and U | 2015-10-01 |
What are Piedmont's health-based records for?
Piedmont's health-based violation records carry 7 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 29 | 12 |
| Combined Radium (-226 and -228) | 28 | 1 |
| Gross Alpha, Excl. Radon and U | 27 | 1 |
| Groundwater Rule | 8 | 2 |
| Nitrate | 2 | 1 |
| Total Haloacetic Acids (HAA5) | 1 | 1 |
| Lead and Copper Rule Revisions | 1 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Piedmont, South Dakota? ▼
How many water violations does Piedmont have in this EPA extract? ▼
What contaminants were found in Piedmont water? ▼
How many water systems serve Piedmont? ▼
Where does Piedmont get its drinking water? ▼
How does Piedmont compare in South Dakota?
Of the 230 South Dakota places with at least one community water system on file, Piedmont ranks #3 by number of systems (25).
Either side of it: Rapid City (44), Black Hawk (41), Spearfish (20), Pine Ridge (18)
About This Data
Figures here are the current EPA SDWIS extract joined to the 25 community water systems whose service area lists Piedmont, ranked against the 230 South Dakota places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.