Public water system record
Mammoth Pool Mobile Home Park
Serves North Fork, Madera County, CA · 30 people served
Federal records show 2 health-based violations and 4 monitoring/reporting issues for Mammoth Pool Mobile Home Park in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 1
- Unresolved
- 1
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 4
Key facts
- Mammoth Pool Mobile Home Park draws water from 1 well.
- Highest measured level in the last 10 years: Nitrate, 12 mg/L, federal limit 10 mg/L (1.2 times the limit), 2018.
- Most recent formal enforcement: compliance order (no penalty) by California, May 2018.
- Record on file since 1980, with 10 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 33 unknown out of 33 service lines.
Check whether Mammoth Pool Mobile Home Park 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 |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
|
Nitrate
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
330 | Jan 1, 2018 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Active |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2011 | Resolved |
Full record since 1980
EPA's records for Mammoth Pool Mobile Home Park go back to 1980. Before October 19, 2016 they list 10 health-based violations (10 resolved) and 70 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 5 |
| 1990s | 0 | 1 |
| 2000s | 5 | 19 |
| 2010 to October 18, 2016 | 5 | 45 |
| October 19, 2016 to 2019 | 1 | 0 |
| 2020s | 1 | 3 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 2014, Resolved.
Show all 10 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2007 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jan 1, 2004 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against Mammoth Pool Mobile Home Park in 2018. The most recent was a compliance order (no penalty) in May 2018.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 10, 2018 | California | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
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
Mammoth Pool Mobile Home Park draws water from 1 well.
Annual water quality report
Mammoth Pool Mobile Home Park 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 Mammoth Pool Mobile Home Park 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