Otero County Water Quality: 2 Cities Ranked by the Records
Otero County, New Mexico: 2 city reports built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.
Highest result for each contaminant
One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.
LithiumDetected in 2 systems10 µg/L EPA health reference level (screening, not a legal limit) · US EPAHighest54 µg/L
- LAKE SECTION WATER COMPANY54 µg/LSample date: 2025-02-17 to 2025-08-20
- ALAMOGORDO DOMESTIC WATER SYSTEM33 µg/LSample date: 2023-11-06 to 2024-08-12
Perfluorooctanoic acid (PFOA)Detected in 1 system of 2 tested4.0 ng/L federal MCL (2024) · US EPAHighest7.4 ng/L
- ALAMOGORDO DOMESTIC WATER SYSTEM7.4 ng/LSample date: 2023-11-06 to 2024-09-04
- LAKE SECTION WATER COMPANYNot detected · below 4.0 ng/L lab reporting limitSample date: 2025-02-17 to 2025-08-20
Lead (90th percentile)Detected in 1 system of 2 tested15 µg/L federal action level · US EPAHighest2 µg/L
- ALAMOGORDO DOMESTIC WATER SYSTEM2 µg/LMonitoring period: 2022–2024
- LAKE SECTION WATER COMPANYNot detectedMonitoring period: 2021–2023
28 PFAS tested, none detected in any systemShow
Tested in these 2 systems: ALAMOGORDO DOMESTIC WATER SYSTEM, LAKE SECTION WATER COMPANY
- 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
- 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
- 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
- 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
- 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
- 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
- Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
- N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
- N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
- Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
- Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
- Perfluoro-3-methoxypropanoic acid (PFMPA)
- Perfluoro-4-methoxybutanoic acid (PFMBA)
- Perfluorobutanesulfonic acid (PFBS)
- Perfluorobutanoic acid (PFBA)
- Perfluorodecanoic acid (PFDA)
- Perfluorododecanoic acid (PFDoA)
- Perfluoroheptanesulfonic acid (PFHpS)
- Perfluoroheptanoic acid (PFHpA)
- Perfluorohexanesulfonic acid (PFHxS)
- Perfluorohexanoic acid (PFHxA)
- Perfluorononanoic acid (PFNA)
- Perfluorooctanesulfonic acid (PFOS)
- Perfluoropentanesulfonic acid (PFPeS)
- Perfluoropentanoic acid (PFPeA)
- Perfluorotetradecanoic acid (PFTA)
- Perfluorotridecanoic acid (PFTrDA)
- Perfluoroundecanoic acid (PFUnA)
Cities ranked by the records
Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.
0of 2 cities above the 15 µg/L action level
Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.
Lead in New MexicoLargest water systems
- AlamogordoALAMOGORDO DOMESTIC WATER SYSTEM · NM351331935,301 served
- ChaparralLAKE SECTION WATER COMPANY · NM352920714,619 served
Frequently asked
How does Otero County tap water compare across cities?
PurityMap ranks 2 cities in Otero County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Chaparral's main water system: LAKE SECTION WATER COMPANY · PWSID NM3529207 · Purity Score 96 (Excellent) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.
How many Otero County cities have PFAS above the federal limit?
1 city of 2 had at least one regulated PFAS (PFOA, PFOS or PFHxS) measured above the 2024 federal limit in EPA's UCMR 5 testing, including Alamogordo (PFOA 7.4 ng/L). PFAS were detected at any level in 1.
Is there lead in Otero County tap water?
Utilities report lead as a 90th-percentile result from home taps. 1 of 2 Otero County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
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