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COLLIER COUNTY REGIONAL WTP vs MDWASA - MAIN SYSTEM

Water quality comparison — risk levels, violations, PFAS records, and contaminants

Quick Answer

Both utilities share the same risk level (safe). COLLIER COUNTY REGIONAL WTP has 0 open health-based violations and 87 PFAS records. MDWASA - MAIN SYSTEM has 0 open health-based violations and 232 PFAS records.

COLLIER COUNTY REGIONAL WTP

Florida · FL5114069

Overall Risk Level

No Concerns Detected

No Concern
Low
Moderate
High
Critical

Water meets all safety standards with no detected exceedances.

0

Open violations

87

PFAS records

MDWASA - MAIN SYSTEM

Florida · FL4130871

Overall Risk Level

No Concerns Detected

No Concern
Low
Moderate
High
Critical

Water meets all safety standards with no detected exceedances.

0

Open violations

232

PFAS records

Head-to-Head Comparison

MetricCOLLIER COUNTY REGIONAL WTPMDWASA - MAIN SYSTEM
StateFloridaFlorida
Risk LevelNo Concerns DetectedNo Concerns Detected
Population Served216,9932,377,460
Open Health Violations00
Total Violations924
PFAS Records87232
OwnershipLocalLocal
Service TypeGroundwaterGroundwater
City ServedNaplesMiami

Contaminants in Violation Records

COLLIER COUNTY REGIONAL WTP

  • E. coli
  • Nitrate
  • Coliform (TCR)
  • Total Trihalomethanes (TTHMs)
  • Haloacetic Acids (HAA5)

MDWASA - MAIN SYSTEM

  • Coliform (TCR)
  • Haloacetic Acids (HAA5)
  • Total Trihalomethanes (TTHMs)
  • E. coli
  • Lead

Key Differences

COLLIER COUNTY REGIONAL WTP has 87 PFAS records vs. 232 for MDWASA - MAIN SYSTEM.

What Should I Do?

If either utility shows open violations or elevated PFAS records, consider:

  • Installing a reverse osmosis filter — removes PFAS, lead, arsenic, nitrates, and most heavy metals.
  • Requesting your utility’s annual Consumer Confidence Report (CCR) for the most current test results.
  • Ordering a certified lab water test if you want contaminant-specific data for your address.

Frequently Asked Questions

Which is safer — COLLIER COUNTY REGIONAL WTP or MDWASA - MAIN SYSTEM?

Both utilities share the same risk level (safe). Both utilities have similar violation profiles — review the full data above to decide based on specific contaminants that concern you.

What does "open health-based violation" mean?

An open health-based violation means a water system has exceeded an EPA Maximum Contaminant Level (MCL) or failed to meet a treatment technique — and the violation has not yet been resolved. These are the most serious type of water quality violations.

How current is this data?

Violation data comes from EPA's Safe Drinking Water Information System (SDWIS), which is updated as utilities report. PFAS data comes from EPA's UCMR 5 monitoring (2023–2025). Risk levels are recalculated daily.

What does PWSID mean?

PWSID stands for Public Water System ID — a unique federal identifier assigned to each community water system. You can use it to look up a system in EPA's ECHO database.

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