Otis Mdwca
EPA ID: NM3521308 · 4,464 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Otis Mdwca (NM3521308): 4 violations recorded with unresolved status in the SDWIS data used. Otis Mdwca's EPA file includes 4 unresolved violations; the utility supplies water to approximately 4,464 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Otis Mdwca Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Otis Mdwca have a median household income of $79,668 and about 40,151 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 65% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 50% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). 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 classified in EPA records as a groundwater source. 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
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 | E. COLI | Non-health-based | Unaddressed (current) |
| October 1, 2025 | Consumer Confidence Rule | Non-health-based | Resolved |
| August 21, 2025 | Public Notice | Non-health-based | Resolved |
| June 11, 2025 | Public Notice | Non-health-based | Unaddressed (current) |
| June 1, 2025 | Revised Total Coliform Rule | Non-health-based | Resolved |
| June 1, 2025 | Chlorine | Non-health-based | Resolved |
| March 1, 2025 | Revised Total Coliform Rule | Non-health-based | Resolved |
| March 1, 2025 | Chlorine | Non-health-based | Resolved |
| February 21, 2025 | Public Notice | Non-health-based | Unaddressed (current) |
| February 7, 2025 | Public Notice | Non-health-based | Resolved |
| October 20, 2024 | Public Notice | Non-health-based | Resolved |
| October 1, 2024 | Consumer Confidence Rule | Non-health-based | Resolved |
| July 1, 2024 | Consumer Confidence Rule | Non-health-based | Resolved |
| June 23, 2024 | Public Notice | Non-health-based | Unaddressed (current) |
| May 31, 2024 | Public Notice | Non-health-based | Resolved |
| December 1, 2023 | Revised Total Coliform Rule | Non-health-based | Resolved |
| October 1, 2023 | Chlorine | Non-health-based | Resolved |
| October 1, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| October 1, 2023 | Consumer Confidence Rule | Non-health-based | Resolved |
| September 14, 2023 | Public Notice | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Public Notice | Other (notice or report rule) | 12 | No |
| Consumer Confidence Rule | Other (notice or report rule) | 9 | No |
| Chlorine | Monitoring & Reporting | 5 | No |
| Chlorine | Monitoring & Reporting | 5 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | No |
| E. COLI | Monitoring & Reporting | 1 | No |
| Public Notice | Monitoring & Reporting | 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 | 2026-12-31 |
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: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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 available EPA compliance records 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: No PFAS Reported Above Reporting Levels
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were reported above UCMR5 minimum reporting levels.
EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.
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.