Community Water System · PWS AZ0403067
Lake Mary Country Store
Operator location Flagstaff, Arizona - smaller served population (≤ 999) at 130 people served; 157 SDWIS violations on record from groundwater sources.
- 130
- People served (this PWS)
- 157
- EPA violations (this PWS)
- 5
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Lake Mary Country Store standing, high SDWIS violation third
130 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 3% is middle-third health share (≤ 23%).
The verdict
Lake Mary Country Store sits in the upper third of the sitemap cohort by violation count (157), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (130; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 3% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 157
- Total EPA violations on record
- 3%
- Health-based (MCL / treatment failure)
- 130
- People served by this PWS (SDWIS)
- N/A
- PFAS compounds detected (UCMR5)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Public/Private
- Connections
- 82
- County
- Coconino
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 100
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 41 | 2025 |
| Nitrite | MR | 30 | 2015 |
| Lead and Copper Rule | MR | 11 | 2025 |
| Coliform (TCR) | MR | 9 | 2014 |
| Revised Total Coliform Rule | MON | 4 | 2020 |
| Public Notice | Other | 4 | 2022 |
| LEAD AND COPPER RULE REVISIONS | RPT | 3 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 3 | 2024 |
| Coliform (TCR) | MCL | 2 | 2007 |
| OXAMYL | MR | 1 | 1998 |
| Simazine | MR | 1 | 1998 |
| Picloram | MR | 1 | 1998 |
| Dinoseb | MR | 1 | 1998 |
| Hexachlorocyclopentadiene | MR | 1 | 1998 |
| Endrin | MR | 1 | 1998 |
| Heptachlor | MR | 1 | 1998 |
| Heptachlor epoxide | MR | 1 | 1998 |
| 2,4-D | MR | 1 | 1998 |
| Benzo(a)pyrene | MR | 1 | 1998 |
| Chlordane | MR | 1 | 1998 |
| BHC-GAMMA | MR | 1 | 1998 |
| Revised Total Coliform Rule | RPT | 1 | 2017 |
| Toxaphene | MR | 1 | 1998 |
| Dalapon | MR | 1 | 1998 |
| Glyphosate | MR | 1 | 1998 |
| Di(2-ethylhexyl) adipate | MR | 1 | 1998 |
| Endothall | MR | 1 | 1998 |
| 1,1,1-Trichloroethane | MR | 1 | 1987 |
| 1,2-Dichloroethane | MR | 1 | 1987 |
| Carbon tetrachloride | MR | 1 | 1987 |
Violation Count vs. the National Corpus
Lake Mary Country Store has 157 recorded EPA violations, 82% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 18% carry more. 3% of this system's own violations are health-based (5 of 157), and it ranks unranked by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
157 Higher than most more violations than 82% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
Population served record for Lake Mary Country Store
EPA SDWIS lists 130 people served and 82 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · Arizona DEQ, Drinking Water Program
Nationwide peers
157 violations · 130 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Lake Mary Country Store
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Arizona compares on the same EPA violation measures. Arizona systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.