Big Park Water Company
EPA ID: AZ0413012 ยท 7,392 people served ยท 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Big Park Water Company (AZ0413012): 2 unresolved EPA violations on record. Unlike fully compliant utilities, Big Park Water Company has 2 outstanding EPA violations for approximately 7,392 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Big Park Water Company Source: EPA SDWIS service area boundaries.
Service area boundary - Grade D
Service Area Demographics
The Big Park Water Company serves a community with a median household income of $80,304 and an estimated 6,560 residents across its service area.
Environmental Justice Note: 38% 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.
๐ง Where Does Your Water Come From?
Big Park Water Company'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.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Detected Contaminants
How Big Park Water Company compares to EPA limits
What This Means For You
PFOA at 8 mg/L exceeds the EPA maximum of 0.000004 mg/L.
PFNA at 8 mg/L exceeds the EPA maximum of 0.00001 mg/L.
Chlorodibromomethane at 8 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.
Bromate at 8 mg/L exceeds the EPA maximum of 0.01 mg/L.
Monochloroacetic Acid at 8 mg/L exceeds the EPA maximum of 0.06 mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 7 detections recorded. 2 exceed federal EPA limits (4 ppt for PFOA/PFOS). 1 exceeds state limits.
Chlorodibromomethane was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter โComparable 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
Big Park Water Company (EPA ID: AZ0413012) is a community water system in Arizona that serves approximately 7,392 people from groundwater sources.
This system serves ZIP code 86351 in Sedona.
ZIP-Area Home Safety Context: D (50/100)
This is the average Home Safety Score for 1 of 1 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 195 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 |
|---|---|---|---|
| December 28, 2025 | Total Coliform | Non-health-based | Resolved |
| December 13, 2025 | Total Coliform | Non-health-based | Resolved |
| November 9, 2025 | Consumer Confidence Report Rule | Health-based | Unaddressed (current) |
| October 2, 2025 | Surface Water Treatment Rule | Non-health-based | Unaddressed (current) |
| October 1, 2025 | Barium | Non-health-based | Resolved |
| October 1, 2025 | Barium | Non-health-based | Resolved |
| June 22, 2025 | Lead and Copper Rule | Non-health-based | Resolved |
| April 1, 2025 | PFOA | Non-health-based | Resolved |
| April 1, 2025 | PFNA | Non-health-based | Resolved |
| April 1, 2025 | Monochloroacetic Acid | Non-health-based | Resolved |
| April 1, 2025 | Dichloroacetic Acid | Non-health-based | Resolved |
| April 1, 2025 | Bromodichloromethane | Non-health-based | Resolved |
| April 1, 2025 | Dibromochloromethane | Non-health-based | Resolved |
| April 1, 2025 | Bromoform | Non-health-based | Resolved |
| April 1, 2025 | Chlorodibromomethane | Non-health-based | Resolved |
| April 1, 2025 | Trichloroacetic Acid | Non-health-based | Resolved |
| April 1, 2025 | Monobromoacetic Acid | Non-health-based | Resolved |
| April 1, 2025 | Dibromoacetic Acid | Non-health-based | Resolved |
| April 1, 2025 | Bromochloroacetic Acid | Non-health-based | Resolved |
| April 1, 2025 | Bromodichloroacetic Acid | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Barium | Inorganic | 14 | Yes |
| PFOA | PFAS | 8 | No |
| PFNA | PFAS | 8 | No |
| Monochloroacetic Acid | Disinfection Byproducts | 8 | No |
| Dichloroacetic Acid | Disinfection Byproducts | 8 | No |
| Bromodichloromethane | Disinfection Byproducts | 8 | No |
| Dibromochloromethane | Disinfection Byproducts | 8 | No |
| Bromoform | Disinfection Byproducts | 8 | No |
| Chlorodibromomethane | Disinfection Byproducts | 8 | No |
| Trichloroacetic Acid | Disinfection Byproducts | 8 | No |
| Monobromoacetic Acid | Disinfection Byproducts | 8 | No |
| Dibromoacetic Acid | Disinfection Byproducts | 8 | No |
| Bromochloroacetic Acid | Disinfection Byproducts | 8 | No |
| Bromodichloroacetic Acid | Disinfection Byproducts | 8 | No |
| Chlorodibromoacetic Acid | Disinfection Byproducts | 8 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 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.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20โ$50 (DIY kit) ยท Professional inspection: $150โ$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking โ 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 AZ or modeled from parcel and building-footprint data.
- 86351 - Sedona
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Big Park Water Company (AZ0413012) on EPA.gov.
Frequently Asked Questions
Is Big Park Water Company water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for Big Park Water Company. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.
How many people does Big Park Water Company serve?
Big Park Water Company serves approximately 7,392 people across 1 ZIP code in Arizona.
Where does Big Park Water Company get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Above Current MCL
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). One or more PFAS compounds were measured above the current state-enforceable MCL.
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) โ per-system federal sampling, 2023โ2025. EPA UCMR5 monitoring program โ
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Big Park Water Company (AZ): 7 Health Violations. https://zipcheckup.com/water-system/az0413012/
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url = {https://zipcheckup.com/water-system/az0413012/}
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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 โ
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report โ
Contact your utility
Big Park Water Company (EPA ID: AZ0413012) - request the latest Consumer Confidence Report or ask about specific contaminants.