GUADALAJARA MEXICAN RESTAURANT
PWS ID: SD4600568 · SPEARFISH, South Dakota 57783
Population Served
630
Total Violations
129
Health-Based Violations
15
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Lawrence
- School/Daycare
- No
- MCL Violations
- 15
- Monitoring Violations
- 78
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 61 | 2004 |
| Coliform (TCR) | MCL | 15 | 2015 |
| Nitrate | MR | 8 | 2004 |
| E. COLI | MR | 6 | 2021 |
| Coliform (TCR) | Other | 6 | 2000 |
| Public Notice | Other | 3 | 2005 |
| Revised Total Coliform Rule | MON | 3 | 2018 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.