Community Water System · PWS SD4600421
Wonderland Homes
Operator location Rapid City, South Dakota - smaller served population (≤ 999) at 750 people served; 21 SDWIS violations on record from groundwater sources.
- 750
- People served (this PWS)
- 21
- EPA violations (this PWS)
- 2
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Wonderland Homes standing, low SDWIS violation third
750 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 10% is middle-third health share (≤ 23%). Population rank #23,511 of 29,740 among systems serving 500+.
The verdict
Wonderland Homes is in the lower third by violation count (21; lower-third violation load (≤ 21 violations)). A low count does not mean the system is unmonitored - monitoring and reporting violations still appear in SDWIS. Population served is smaller (750; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 10% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #23,511 of 29,740
- Population · /systems
- #131 of 171
- Population · SD
- 21
- Total EPA violations on record
- 10%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 258
- County
- Meade
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 18
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MR | 2 | 1988 |
| Barium | MR | 2 | 1988 |
| Cadmium | MR | 2 | 1988 |
| Chromium | MR | 2 | 1988 |
| Fluoride | MR | 2 | 1988 |
| Mercury | MR | 2 | 1988 |
| Nitrate | MR | 2 | 1988 |
| Selenium | MR | 2 | 1988 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | 2 | 2015 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1976 |
| Combined Radium (-226 and -228) | MR | 1 | 1976 |
Violation Count vs. the National Corpus
Wonderland Homes has 21 recorded EPA violations, 33% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 66% carry more. 10% of this system's own violations are health-based (2 of 21), and it ranks #23,511 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
21 Lower than most fewer violations than 66% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
Population served record for Wonderland Homes
EPA SDWIS lists 750 people served and 258 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
21 violations · 750 served: nearest cross-state SDWIS matches.
Cross-state systems with similarly light violation ledgers
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Wonderland Homes
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in South Dakota compares on the same EPA violation measures. South Dakota systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.