MT. SHASTA, CITY OF
PWSID: CA4710008 · Mt. Shasta, CA · Serves 3,642 people
According to EPA Safe Drinking Water Information System (SDWIS), MT. SHASTA, CITY OF (PWSID CA4710008) in Mt. Shasta, CA is listed as a CWS water system covering about 3,642 people. The same extract lists 11 health-based violation records spanning 2014-2024. Those 11 health-based rows for MT. SHASTA, CITY OF cover contaminants such as Coliform (TCR), Revised Total Coliform Rule, LEAD AND COPPER RULE REVISIONS; they remain historical EPA registry entries, not a current compliance or drinkability score.
MT. SHASTA, CITY OF has 11 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 Coliform (TCR), Revised Total Coliform Rule, LEAD AND COPPER RULE REVISIONS. Recorded violations span 2014–2024. Day-to-day primacy enforcement for this system runs through the California 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 California state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- CA4710008
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Mt. Shasta, CA
- Population Served
- 3,642
- Health Violations
- Yes (11)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Coliform (TCR) | 6 | 6 |
| Revised Total Coliform Rule | 4 | 4 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
Violation History (11)
| Contaminant | Health | Date |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Revised Total Coliform Rule | Yes | Sep 1, 2019 |
| Revised Total Coliform Rule | Yes | Jul 1, 2017 |
| Revised Total Coliform Rule | Yes | Jul 1, 2017 |
| Revised Total Coliform Rule | Yes | Jun 1, 2017 |
| Coliform (TCR) | Yes | Mar 1, 2016 |
| Coliform (TCR) | Yes | Oct 1, 2015 |
| Coliform (TCR) | Yes | May 1, 2015 |
| Coliform (TCR) | Yes | Jan 1, 2015 |
| Coliform (TCR) | Yes | Nov 1, 2014 |
| Coliform (TCR) | Yes | Aug 1, 2014 |
Frequently Asked Questions
What does EPA SDWIS list for MT. SHASTA, CITY OF?
How many people does MT. SHASTA, CITY OF serve?
What violations does MT. SHASTA, CITY OF have?
What contaminants have been found in MT. SHASTA, CITY OF water?
Compare beyond California
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest MT. SHASTA, CITY OF on cumulative violation count (11) and EPA-reported population served (3,642). Violation-count peers include MICCOSUKEE TRIBE OF INDIANS, WHITE SWAN, HAINES BOROUGH. Population peers include BARTON LEXA WATER ASSOCIATION, MASON WATER DEPT, HARRIS COUNTY MUD 208.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
MT. SHASTA, CITY OF (CA4710008) is drawn from EPA SDWIS. Nearby county systems in this extract include YREKA, CITY OF; LAKE SHASTINA C.S.D; WEED, CITY OF; DUNSMUIR, CITY OF. Health-based rows (11 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.