How many water violations are in Clay County?

Clay County has 1,593 total drinking water violations across 79 water systems, of which 94 are health-based violations. 81.0% of systems have at least one violation.

How many people get water from Clay County systems?

Water systems in Clay County serve approximately 215,697 people through 79 public water systems.

Has PFAS been detected in Clay County water?

Under EPA UCMR5, 0 of 6 tested systems in Clay County had at least one PFAS detection (0.0% of the UCMR5-tested subset - not of all 79 SDWIS systems).

What types of water sources supply Clay County?

Water systems in Clay County use GW (79 systems) as their primary water sources.

Are health-based violations serious?

Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 5.9% of Clay County's violations are health-based. Among counties with any SDWIS violations, this extract puts Clay County in the lower health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

Where does Clay County sit among U.S. counties for water-system population?

According to EPA SDWIS county population served used on /counties, Clay County ranks #316 of 3,254 counties by people served, and #28 of 67 counties in Florida. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Florida

Clay County, Florida

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet FL019 · Clay County 79 sys · 1,593 viol · #316/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

VIOL-SEVERE 81.0% flagged
HEALTH-LOW 5.9% health
RANK-TOP #316/3254
PHOTO-FINISH ±0.8 pp
PFAS-CLEAN 0.0% detect
SRC-GW GW lead 100%
SYS-MID 79 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Franklin County (+ 0.8 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Clay County ranks #316 of 3,254 counties by people served, and #28 of 67 counties in Florida. See methodology · corpus placement.

Clay County standing, lower-flagged corpus third

Flagged-system rate 81.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 5.9% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #316 of 3,254 · #28 of 67 in Florida.

Water Systems

System Name	Population	Violations	PFAS
Orange Park Grid	127,904	28	Clean
Pace Fleming Grid	30,211	16	Clean
Lake Asbury Grid	27,001	28	Clean
Town of Orange Park	8,668	64	Clean
City of Green Cove Springs WTP	7,000	73	Clean
Keystone Postmaster Grid	5,092	20	Clean
Wilkinson Schools	1,763	15	-
St. Johns Landing Apartments	1,310	38	-
Camp Blanding Joint Training Center	900	79	-
Clay Hill Elementary School	553	29	-
McRae Elementary School	529	15	-
Town of Penney Farms WTP	489	45	-
Penney Retirement Community	450	31	-
Kingsley Lake Baptist Church	445	42	-
Pier Station WTP	270	24	-
Chemours - Trailridge	250	3	-
Camp Crystal Lake	200	16	-
Kingsley Cove	196	30	-
Calvary Baptist Church	150	3	-
Long Branch Baptist Church	150	4	-
Leaps ; Bounds Preschool	142	17	-
Green Cove Springs Church of Christ	125	6	-
South Middleburg Baptist Church WTP	120	31	-
Kid's World Child Care Center	114	72	-
Lake Geneva MHP	95	274	-
Mobro Marine, Inc.	80	4	-
Gadara Baptist Church	80	0	-
Omega Metals	75	3	-
Oliver Plaza	70	5	-
Whitey's Fish Camp	30	9	-
National Training	30	9	-
Green Cove Springs Church of God	30	77	-
Camp Chowenwaw	25	30	-
St. Johns River Base-Echockotee	25	36	-
Camp Immokalee	25	31	-
Gold Head Branch State Park	25	46	-
Omega Park	25	9	-
Tnt Lounge ; Liquor	25	12	-
Boogerville Hideout	25	31	-
Clay County Fairgrounds	25	18	-
Circle K #6286	25	7	-
Circle K #6267	25	8	-
Circle K #6065	25	7	-
Circle K #6211	25	10	-
Circle K #6290	25	5	-
Circle K #6508	25	12	-
Middleburg Smoke and Beer	25	6	-
Sheriff's Substation	25	14	-
Watering Hole at Smith Lake	25	94	-
Blue Jay Bp	25	6	-

Compare beyond Florida

Lower-flagged peers for Clay County

Cross-state counties nearest Clay County on flagged-system share (81.0%) and cumulative violation count (1,593). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.