Mt Lemmon Dwid
EPA ID: AZ0410140 · 290 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Mt Lemmon Dwid (AZ0410140): 2 violations recorded with unresolved status in the SDWIS data used. Mt Lemmon Dwid's EPA file includes 2 unresolved violations; the utility supplies water to approximately 290 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Mt Lemmon Dwid Source: EPA SDWIS service area boundaries.
Service area boundary
💧 Where Does Your Water Come From?
Mt Lemmon Dwid'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
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System Overview
Mt Lemmon Dwid (EPA ID: AZ0410140) is a community water system in Arizona that serves approximately 290 people from groundwater sources.
This system serves ZIP code 85619 in Mount Lemmon.
Violation History
Status breakdown for accepted records with record years 2021-2026: 9 resolved, 0 archived, 0 addressed, and 2 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 |
|---|---|---|---|
| January 1, 2026 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| July 2, 2025 | LEAD AND COPPER RULE REVISIONS | Non-health-based | Unaddressed (current) |
| March 24, 2024 | Public Notice | Non-health-based | Resolved |
| January 1, 2024 | TTHM | Non-health-based | Resolved |
| January 1, 2024 | Total Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| February 1, 2023 | Revised Total Coliform Rule | Non-health-based | Resolved |
| January 1, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| January 1, 2023 | TTHM | Non-health-based | Resolved |
| January 1, 2023 | Total Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| May 1, 2022 | Revised Total Coliform Rule | Non-health-based | Resolved |
| July 1, 2021 | Consumer Confidence 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 |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | Monitoring & Reporting | 2 | No |
| TTHM | Monitoring & Reporting | 2 | No |
| Public Notice | Monitoring & Reporting | 2 | No |
| Revised Total Coliform Rule | Monitoring & Reporting | 2 | No |
| LEAD AND COPPER RULE REVISIONS | Monitoring & Reporting | 1 | No |
| Consumer Confidence Rule | Other (notice or report rule) | 1 | No |
| Public Notice | Other (notice or report rule) | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0057 mg/L | No | 2025-12-31 |
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 AZ or modeled from parcel and building-footprint data.
- 85619 - Mount Lemmon
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Mt Lemmon Dwid (AZ0410140) on EPA.gov.
Frequently Asked Questions
Is Mt Lemmon Dwid water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 2 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 Mt Lemmon Dwid serve?
Mt Lemmon Dwid serves approximately 290 people across 1 ZIP code in Arizona.
Where does Mt Lemmon Dwid get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Mt Lemmon Dwid (AZ): 11 EPA Violations. https://zipcheckup.com/water-system/az0410140/
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author = {{ZipCheckup}},
title = {{Mt Lemmon Dwid (AZ): 11 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/az0410140/}
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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
Mt Lemmon Dwid (EPA ID: AZ0410140) - request the latest Consumer Confidence Report or ask about specific contaminants.