CEDAR GULCH 1
PWSID: SD4602301 · Rapid City, SD · Serves 45 people
According to EPA Safe Drinking Water Information System (SDWIS), CEDAR GULCH 1 (PWSID SD4602301) in Rapid City, SD is listed as a CWS water system covering about 45 people. The same extract lists 5 health-based violation records spanning 2016-2025. Those 5 health-based rows for CEDAR GULCH 1 cover contaminants such as Stage 1 Disinfectants and Disinfection Byproducts Rule, Groundwater Rule, Revised Total Coliform Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
CEDAR GULCH 1 has 5 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 3 distinct EPA contaminant codes appear in this system's record, including Stage 1 Disinfectants and Disinfection Byproducts Rule, Groundwater Rule, Revised Total Coliform Rule. Recorded violations span 2016–2025. Day-to-day primacy enforcement for this system runs through the South Dakota drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the South Dakota state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- SD4602301
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Rapid City, SD
- Population Served
- 45
- Health Violations
- Yes (5)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | 2 | 2 |
| Groundwater Rule | 2 | 2 |
| Revised Total Coliform Rule | 1 | 1 |
Violation History (5)
| Contaminant | Health | Date |
|---|---|---|
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Yes | Feb 1, 2025 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | Yes | Feb 1, 2025 |
| Groundwater Rule | Yes | Oct 23, 2018 |
| Revised Total Coliform Rule | Yes | Apr 13, 2017 |
| Groundwater Rule | Yes | Apr 1, 2016 |
Frequently Asked Questions
What does EPA SDWIS list for CEDAR GULCH 1?
How many people does CEDAR GULCH 1 serve?
What violations does CEDAR GULCH 1 have?
What contaminants have been found in CEDAR GULCH 1 water?
Compare beyond South Dakota
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest CEDAR GULCH 1 on cumulative violation count (5) and EPA-reported population served (45). Violation-count peers include Jemez Pueblo, Acoma Main, OMAHA TRIBE PWS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
CEDAR GULCH 1 (SD4602301) is drawn from EPA SDWIS. Nearby county systems in this extract include RAPID CITY; RAPID VALLEY SANITARY DISTRICT; COLONIAL PINE HILLS SANITARY DISTRIC; HILL CITY. Health-based rows (5 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.