A92/100
KEYSTONE POSTMASTER GRID — Water Quality Report 2026
Serving 5,092 people · Florida
Water Source
Groundwater
County
—
System ID
FL2100610
Violations
5
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
No violations in the past 5 years
Full EPA compliance since 2001.
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About KEYSTONE POSTMASTER GRID
Is KEYSTONE POSTMASTER GRID water safe to drink?
KEYSTONE POSTMASTER GRID water receives a grade of A (92/100), which is considered excellent. Out of 31 contaminants tested, none exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has KEYSTONE POSTMASTER GRID detected?
31 contaminants were tested in KEYSTONE POSTMASTER GRID's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does KEYSTONE POSTMASTER GRID have any EPA violations?
Yes, KEYSTONE POSTMASTER GRID has 5 EPA violation(s) on record, with the most recent in 2001. Violation types include MR.
How many people does KEYSTONE POSTMASTER GRID serve?
KEYSTONE POSTMASTER GRID serves approximately 5,092 people, Florida. The system provides water to 1 community: Keystone Heights.
What type of water does KEYSTONE POSTMASTER GRID provide?
KEYSTONE POSTMASTER GRID sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is FL2100610.
How does KEYSTONE POSTMASTER GRID compare to other utilities in Florida?
KEYSTONE POSTMASTER GRID scores 92/100 with a grade of A (excellent). This places it among the higher-performing utilities in the state. Visit our Florida state page for a full comparison of water systems.