Otis Mdwca
EPA ID: NM3521308 · 4,464 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Otis Mdwca (NM3521308): 4 unresolved EPA violations on record. Pulled from the federal compliance ledger, 4 violations at Otis Mdwca remain without resolution - the utility delivers drinking water to roughly 4,464 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Otis Mdwca Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Otis Mdwca serves a community with a median household income of $79,668 and an estimated 40,151 residents across its service area. Approximately 65% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 50% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Otis Mdwca's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Detected Contaminants
How Otis Mdwca compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 2 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) at 2 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Lead and Copper Rule at 12 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 9 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 5 mg/L exceeds the EPA maximum of mg/L.
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in New Mexico
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Otis Mdwca (EPA ID: NM3521308) is a community water system in New Mexico that serves approximately 4,464 people from groundwater sources.
This system serves ZIP code 88220 in Carlsbad.
Violation History
Status breakdown for accepted records with record years 2021-2026: 33 resolved, 0 archived, 0 addressed, and 4 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| December 20, 2025 | Total Coliform | Non-health-based | Unaddressed (current) |
| October 1, 2025 | Surface Water Treatment Rule | Non-health-based | Resolved |
| August 21, 2025 | Lead and Copper Rule | Non-health-based | Resolved |
| June 11, 2025 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| June 1, 2025 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| June 1, 2025 | Revised Total Coliform Rule | Non-health-based | Resolved |
| March 1, 2025 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| March 1, 2025 | Revised Total Coliform Rule | Non-health-based | Resolved |
| February 21, 2025 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| February 7, 2025 | Lead and Copper Rule | Non-health-based | Resolved |
| October 20, 2024 | Lead and Copper Rule | Non-health-based | Resolved |
| October 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| July 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| June 23, 2024 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| May 31, 2024 | Lead and Copper Rule | Non-health-based | Resolved |
| December 1, 2023 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| October 1, 2023 | Revised Total Coliform Rule | Non-health-based | Resolved |
| October 1, 2023 | Stage 1 DBP Rule | Non-health-based | Resolved |
| October 1, 2023 | Surface Water Treatment Rule | Non-health-based | Resolved |
| September 14, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Lead and Copper Rule | Treatment Failure | 12 | No |
| Surface Water Treatment Rule | Treatment Failure | 9 | No |
| Consumer Confidence Report Rule | Reporting Failure | 5 | No |
| Revised Total Coliform Rule | Microbiological | 5 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | No |
| Total Coliform | Microbiological | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.003 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by NM or modeled from parcel and building-footprint data.
- 88220 - Carlsbad
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Otis Mdwca (NM3521308) on EPA.gov.
Frequently Asked Questions
Is Otis Mdwca water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 4 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Otis Mdwca serve?
Otis Mdwca serves approximately 4,464 people across 1 ZIP code in New Mexico.
Where does Otis Mdwca get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Otis Mdwca (NM): 37 EPA Violations. https://zipcheckup.com/water-system/nm3521308/
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title = {{Otis Mdwca (NM): 37 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nm3521308/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Otis Mdwca (EPA ID: NM3521308) - request the latest Consumer Confidence Report or ask about specific contaminants.