Public water system record
MD 05 Mountain Ranches
Serves an area of Madera County, CA · 239 people served
Federal records show 1 health-based violation and no monitoring/reporting issues for MD 05 Mountain Ranches in the last ten years. The most serious issue in this window was a resolved Nitrate violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 0
Key facts
- MD 05 Mountain Ranches draws water from 2 wells.
- Highest measured level in the last 10 years: Nitrate, 15 mg/L, federal limit 10 mg/L (1.5 times the limit), 2023.
- Most recent formal enforcement: compliance order (no penalty) by California, April 2023.
- Record on file since 2005, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 50 service lines.
Check whether MD 05 Mountain Ranches serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Nitrate
Contaminant limit exceeded
Measured 15 mg/L, federal limit 10 mg/L (1.5 times the limit)
|
330 | Jan 1, 2023 | Resolved | Yes |
Full record since 2005
EPA's records for MD 05 Mountain Ranches go back to 2005. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 1 | 6 |
| 2020s | 1 | 0 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 2008, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2008 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against MD 05 Mountain Ranches in 2023. The most recent was a compliance order (no penalty) in April 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 27, 2023 | California | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate |
What the violations mean
Nitrate
1 incidentNitrate exceeded the federal limit
High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome
Where the water comes from
MD 05 Mountain Ranches draws water from 2 wells.
Annual water quality report
MD 05 Mountain Ranches must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask MD 05 Mountain Ranches for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.
Certified drinking water labs by state EPA guidance for private wells