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Clean Water Act discharge permit · NPDES FLR10XI04

RIVERTOWN WATERSONG PHASE 4, Saint Johns, FL: NPDES FLR10XI04 discharge permit, effluent exceedances, inspections, penalties

RIVERTOWN WATERSONG PHASE 4, held by Mattamy Homes, holds NPDES permit FLR10XI04. EPA’s file records it issued December 21, 2024 and expiring December 20, 2029.

RIVERTOWN WATERSONG PHASE 4, Saint Johns, Florida: Coverage under a general permit FLR10XI04, held by Mattamy Homes; Construction stormwater; Effective; issued December 21, 2024, term to December 20, 2029, by Florida Department of Environmental Protection.

Florida holds 15,654 Construction stormwater coverages of this permit type in EPA’s file; 8,625 were issued before FLR10XI04. Mattamy Homes holds 26 permits in Florida.

Other permits held by Mattamy Homes

Coverages issued nearest FLR10XI04

RIVERTOWN WATERSONG PHASE 4 among its neighbors

EPA’s permit file holds 66 discharge permits in the Governors Creek subwatershed (HUC 030801031204), FLR10XI04 among them. Its county holds 377, 3 of them major permits; FLR10XI04 is a minor permit.

Other permits in the Governors Creek subwatershed (HUC 030801031204)

What the register holds for RIVERTOWN WATERSONG PHASE 4: its NPDES ID, its permit type and status, its dates, its address in Saint Johns, Florida. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES FLR10XI04.

Identity

Facility as filedRIVERTOWN WATERSONG PHASE 4
Permittee as filedMattamy Homes
NPDES IDFLR10XI04
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedDecember 21, 2024
Expiration dateDecember 20, 2029
Issuing agencyFlorida Department of Environmental Protection
AddressSaint Johns, FL 32259
Receiving water impaired303(D) Listed
SubwatershedGovernors Creek (HUC 030801031204)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES FLR10XI04.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES FLR10XI04.

Inspections

EPA’s inspection file holds no inspection for NPDES FLR10XI04.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES FLR10XI04.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, FLR10XI04.

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  • One state — $4,990/year
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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

1.9% of the storm water construction permits in St. Johns County carry a violation on file, and RIVERTOWN WATERSONG PHASE 4 is among the 261 such permits. The Governors Creek subwatershed records 66 NPDES permits, including this permit, and 79.3% of the county's storm water construction permits were issued before this permit.