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STRATO RIM ESTATES WATER COMPANY

PWS ID: SD4602191 · RAPID CITY, South Dakota 57702

STRATO RIM ESTATES WATER COMPANY serves 170 people in RAPID CITY, South Dakota using Groundwater water sources. It has 512 recorded EPA violations, including 5 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: STRATO RIM ESTATES WATER COMPANY

STRATO RIM ESTATES WATER COMPANY is a private-owned community water system that delivers drinking water to 170 residents in RAPID CITY, South Dakota (Pennington County) through 75 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 512 total violations for this system , of which 5 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 503 monitoring and reporting violations are on file. The most recent violation on record dates to 2010.

The most frequently cited contaminant at this system is Dalapon, recorded in 21 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across South Dakota, EPA tracks 654 public water systems serving 915,901 people, with 56,254 cumulative violations and 8,399 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 86 violations. STRATO RIM ESTATES WATER COMPANY's 512 violations sit above the South Dakota average. Statewide, 42 of 49 UCMR5-tested systems have reported PFAS detections (85.7%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
170
Total Violations
512
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
75
County
Pennington
School/Daycare
No
MCL Violations
5
Monitoring Violations
503
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Dalapon MR 21 2003
Dinoseb MR 21 2003
Pentachlorophenol MR 21 2003
Picloram MR 21 2003
2,4-D MR 21 2003
2,4,5-TP MR 21 2003
Heptachlor MR 14 2003
Atrazine MR 14 2003
Benzo(a)pyrene MR 14 2003
Di(2-ethylhexyl) adipate MR 14 2003
Di(2-ethylhexyl) phthalate MR 14 2003
Hexachlorocyclopentadiene MR 14 2003
HEXACHLOROBENZENE MR 14 2003
BHC-GAMMA MR 14 2003
Chlordane MR 14 2003
Carbofuran MR 14 2003
1,2-DIBROMO-3-CHLOROPROPANE MR 14 2003
ETHYLENE DIBROMIDE MR 14 2003
Glyphosate MR 14 2003
Diquat MR 14 2003
LASSO MR 14 2003
Heptachlor epoxide MR 14 2003
Endothall MR 14 2003
Total Polychlorinated Biphenyls (PCB) MR 14 2003
Endrin MR 14 2003
Toxaphene MR 14 2003
Simazine MR 14 2003
OXAMYL MR 14 2003
Methoxychlor MR 14 2003
Coliform (TCR) MCL 5 2010

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for STRATO RIM ESTATES WATER COMPANY.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID SD4602191 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

South Dakota Drinking Water Authority

South Dakota's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find SD regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2010 Coliform (TCR) MCL 5 SDWIS / SD4602191 / 3100
2003 Dalapon MR 21 SDWIS / SD4602191 / 2031
2003 Dinoseb MR 21 SDWIS / SD4602191 / 2041
2003 Pentachlorophenol MR 21 SDWIS / SD4602191 / 2326
2003 Picloram MR 21 SDWIS / SD4602191 / 2040
2003 2,4-D MR 21 SDWIS / SD4602191 / 2105
2003 2,4,5-TP MR 21 SDWIS / SD4602191 / 2110
2003 Heptachlor MR 14 SDWIS / SD4602191 / 2065
2003 Atrazine MR 14 SDWIS / SD4602191 / 2050
2003 Benzo(a)pyrene MR 14 SDWIS / SD4602191 / 2306
2003 Di(2-ethylhexyl) adipate MR 14 SDWIS / SD4602191 / 2035
2003 Di(2-ethylhexyl) phthalate MR 14 SDWIS / SD4602191 / 2039
2003 Hexachlorocyclopentadiene MR 14 SDWIS / SD4602191 / 2042
2003 HEXACHLOROBENZENE MR 14 SDWIS / SD4602191 / 2274
2003 BHC-GAMMA MR 14 SDWIS / SD4602191 / 2010

How STRATO RIM ESTATES WATER COMPANY Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric STRATO RIM ESTATES WATER COMPANY South Dakota avg Federal benchmark
Total violations 512 86 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 5 12.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 85.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 170 1,400 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 654 regulated public water systems in South Dakota.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is STRATO RIM ESTATES WATER COMPANY water safe to drink? ▼
STRATO RIM ESTATES WATER COMPANY (PWS ID: SD4602191) has 512 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 170 people using Groundwater sources.
How many people does STRATO RIM ESTATES WATER COMPANY serve? ▼
STRATO RIM ESTATES WATER COMPANY serves 170 people in RAPID CITY, South Dakota. It is a Private-owned system using Groundwater water sources with 75 service connections.
What type of violations does STRATO RIM ESTATES WATER COMPANY have? ▼
STRATO RIM ESTATES WATER COMPANY has 512 total violations: 5 health-based violations (MCL exceedances or treatment failures), 503 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in STRATO RIM ESTATES WATER COMPANY water? ▼
No PFAS testing data is available for STRATO RIM ESTATES WATER COMPANY under the EPA's UCMR5 monitoring program.
What water source does STRATO RIM ESTATES WATER COMPANY use? ▼
STRATO RIM ESTATES WATER COMPANY uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial