Public water system record
Ruidoso Water System
Serves Ruidoso, Lincoln County, NM · 15,947 people served
Federal records show 7 health-based violations and 7 monitoring/reporting issues for Ruidoso Water System in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.
System profile
- Health-based violations, last 10 years
- 7
- Resolved
- 7
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 7
Key facts
- Ruidoso Water System draws water from 16 wells, 3 surface water intakes and 1 reservoir.
- Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.261 mg/L, federal limit 0.08 mg/L (3.3 times the limit), 2020.
- Most recent formal enforcement: compliance order (no penalty) by New Mexico, July 2013.
- Record on file since 1993, with 24 health-based violations before October 19, 2016.
Check whether Ruidoso Water System 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 |
|---|---|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.258 mg/L, federal limit 0.08 mg/L (3.2 times the limit)
|
220 | Jan 1, 2021 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Oct 1, 2020 | Resolved | No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Oct 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.259 mg/L, federal limit 0.08 mg/L (3.2 times the limit)
|
220 | Oct 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.259 mg/L, federal limit 0.08 mg/L (3.2 times the limit)
|
220 | Jul 1, 2020 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.261 mg/L, federal limit 0.08 mg/L (3.3 times the limit)
|
220 | Apr 1, 2020 | Resolved | No |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Feb 1, 2018 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
May 2, 2021 | Resolved |
|
Public Notice
OTHER
|
May 14, 2017 | Resolved |
|
Public Notice
OTHER
|
May 14, 2017 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Jun 2, 2016 | Active |
|
Public Notice
OTHER
|
Jan 16, 2014 | Resolved |
|
Public Notice
OTHER
|
Aug 18, 2013 | Resolved |
|
Public Notice
OTHER
|
Mar 8, 2013 | Resolved |
Full record since 1993
EPA's records for Ruidoso Water System go back to 1993. Before October 19, 2016 they list 24 health-based violations (17 resolved, 7 archived by EPA without a recorded fix) and 181 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 8 | 3 |
| 2000s | 2 | 157 |
| 2010 to October 18, 2016 | 14 | 21 |
| October 19, 2016 to 2019 | 1 | 2 |
| 2020s | 6 | 1 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began December 2012, Resolved.
Show all 24 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 2012 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 2012 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Sep 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Sep 1, 2012 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Aug 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Aug 1, 2012 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jul 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jul 1, 2012 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Jun 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
May 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Feb 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2008 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1997 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1995 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1994 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1994 | Archived |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1993 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Oct 1, 1993 | Resolved |
Enforcement actions
New Mexico regulators and EPA took 2 formal enforcement actions against Ruidoso Water System between 1996 and 2013. The most recent was a compliance order (no penalty) in July 2013.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 16, 2013 | New Mexico | Compliance order (no penalty) | 3 violations: Surface Water Treatment Rule, Public Notice |
| May 31, 1996 | EPA | Compliance order (no penalty) | 9 violations (7 health-based): Surface Water Treatment Rule, Total Coliform |
What the violations mean
Total Trihalomethanes (TTHMs)
4 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
CARBON, TOTAL
2 incidentsThe system did not complete a treatment step or action that federal rules require for CARBON, TOTAL (a treatment technique violation).
The utility had to notify customers about each of these violations.
Surface Water Treatment Rule
1 incidentThe system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Ruidoso Water System draws water from 16 wells, 3 surface water intakes and 1 reservoir.
Annual water quality report
Ruidoso Water System 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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 New Mexico.
Certified drinking water labs by state EPA guidance for private wells