Mountain Air Water Assoc
EPA ID: OR4100144 · 170 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Mountain Air Water Assoc (OR4100144): 50 EPA violations in the last five years. Five years tracked: Mountain Air Water Assoc had 50 violations, all cleared, 170 served.
Data: EPA SDWIS
Service Area Map
Coverage area for Mountain Air Water Assoc Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Mountain Air Water Assoc serves a community with a median household income of $86,429 and an estimated 2,285 residents across its service area. Approximately 52% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Mountain Air Water Assoc'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.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How Mountain Air Water Assoc compares to EPA limits
What This Means For You
PFOA at 2 mg/L exceeds the EPA maximum of 0.000004 mg/L.
PFNA at 2 mg/L exceeds the EPA maximum of 0.00001 mg/L.
Chlorodibromomethane at 2 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.
Lead at 4 mg/L (action level) exceeds the EPA maximum of 0.015 mg/L (action level). Brain damage in children, kidney & blood pressure in adults. Consider reverse osmosis filtration.
Bromate at 2 mg/L exceeds the EPA maximum of 0.01 mg/L.
Chlorodibromomethane was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
Mountain Air Water Assoc (EPA ID: OR4100144) is a community water system in Oregon that serves approximately 170 people from groundwater sources.
This system serves ZIP code 97067 in Welches.
Violation History
Status breakdown for accepted records with record years 2021-2026: 4 resolved, 46 archived, 0 addressed, and 0 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, 2025 | Contaminant 3028 | Non-health-based | Archived |
| January 1, 2025 | Contaminant 3028 | Non-health-based | Archived |
| January 1, 2025 | Lead | Non-health-based | Archived |
| January 1, 2025 | Lead | Non-health-based | Archived |
| July 1, 2024 | Surface Water Treatment Rule | Non-health-based | Resolved |
| October 1, 2023 | Surface Water Treatment Rule | Non-health-based | Resolved |
| January 1, 2023 | PFOA | Non-health-based | Archived |
| January 1, 2023 | PFNA | Non-health-based | Archived |
| January 1, 2023 | Monochloroacetic Acid | Non-health-based | Archived |
| January 1, 2023 | Dichloroacetic Acid | Non-health-based | Archived |
| January 1, 2023 | Bromodichloromethane | Non-health-based | Archived |
| January 1, 2023 | Dibromochloromethane | Non-health-based | Archived |
| January 1, 2023 | Bromoform | Non-health-based | Archived |
| January 1, 2023 | Chlorodibromomethane | Non-health-based | Archived |
| January 1, 2023 | Trichloroacetic Acid | Non-health-based | Archived |
| January 1, 2023 | Monobromoacetic Acid | Non-health-based | Archived |
| January 1, 2023 | Dibromoacetic Acid | Non-health-based | Archived |
| January 1, 2023 | Bromochloroacetic Acid | Non-health-based | Archived |
| January 1, 2023 | Bromodichloroacetic Acid | Non-health-based | Archived |
| January 1, 2023 | Chlorodibromoacetic Acid | Non-health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Lead | Inorganic | 4 | No |
| PFOA | PFAS | 2 | No |
| PFNA | PFAS | 2 | No |
| Monochloroacetic Acid | Disinfection Byproducts | 2 | No |
| Dichloroacetic Acid | Disinfection Byproducts | 2 | No |
| Bromodichloromethane | Disinfection Byproducts | 2 | No |
| Dibromochloromethane | Disinfection Byproducts | 2 | No |
| Bromoform | Disinfection Byproducts | 2 | No |
| Chlorodibromomethane | Disinfection Byproducts | 2 | No |
| Trichloroacetic Acid | Disinfection Byproducts | 2 | No |
| Monobromoacetic Acid | Disinfection Byproducts | 2 | No |
| Dibromoacetic Acid | Disinfection Byproducts | 2 | No |
| Bromochloroacetic Acid | Disinfection Byproducts | 2 | No |
| Bromodichloroacetic Acid | Disinfection Byproducts | 2 | No |
| Chlorodibromoacetic Acid | Disinfection Byproducts | 2 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.008 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 OR or modeled from parcel and building-footprint data.
- 97067 - Welches
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Mountain Air Water Assoc (OR4100144) on EPA.gov.
Frequently Asked Questions
Is Mountain Air Water Assoc water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Mountain Air Water Assoc; its 50 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Mountain Air Water Assoc serve?
Mountain Air Water Assoc serves approximately 170 people across 1 ZIP code in Oregon.
Where does Mountain Air Water Assoc get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Mountain Air Water Assoc (OR): 50 EPA Violations. https://zipcheckup.com/water-system/or4100144/
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author = {{ZipCheckup}},
title = {{Mountain Air Water Assoc (OR): 50 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/or4100144/}
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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
Mountain Air Water Assoc (EPA ID: OR4100144) - request the latest Consumer Confidence Report or ask about specific contaminants.