Clean Water Act discharge permit · NPDES FLR10XZ23

DUCK COURT PARK, Port Saint Lucie, FL: NPDES FLR10XZ23 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

DUCK COURT PARK, held by GRSC, Inc., holds NPDES permit FLR10XZ23. EPA’s file records it issued October 2, 2025 and expiring October 1, 2030.

DUCK COURT PARK, Port Saint Lucie, Florida: Coverage under a general permit FLR10XZ23, held by GRSC, Inc.; Construction stormwater; Effective; issued October 2, 2025, term to October 1, 2030, by Florida Department of Environmental Protection.

Florida holds 15,654 Construction stormwater coverages of this permit type in EPA’s file; 11,560 were issued before FLR10XZ23. GRSC, Inc. holds 2 permits in Florida.

Other permits held by GRSC, Inc.

BEACHCOMBER LANE PEBBLE LANE ROADWAY IMPROVEMENTS, Vero Beach: FLR20JG30, issued May 14, 2026

Coverages issued nearest FLR10XZ23

September 29, 2025: OLD MILL, Wesley Chapel, FLR20IQ23, held by Ripa & Associates LLC
September 29, 2025: 43RD ST DITCH IMPROVEMENTS, Tampa, FLR20IQ24, held by Ferreira Construction Co.
September 29, 2025: REHABILITATION OF 54-INCH PCCP FM ON W FLAGLER STR, Miami, FLR20IQ27, held by David Mancini & Sons, Inc
September 29, 2025: THE MARK TAMPA, Tampa, FLR20IQ29, held by Vertical Earth, Inc.
October 1, 2025: CV SHELTER LIVE OAK, Live Oak, FLR20IQ31, held by Blackwater Construction Services
October 2, 2025: 1512304 BEN BOSTICK GADSDEN COUNTY, Quincy, FLR10XZ25, held by C W Roberts Contracting, Inc
October 2, 2025: DC INDUSTRIAL, Jupiter, FLR20IP62, held by Ryan Incorporated Southern
October 2, 2025: (SR 93) I-75 IMPROVEMENTS FROM GRIFFIN RD TO S SW 14TH ST, Davie, FLR20IP82, held by OHL USA, Inc
October 2, 2025: 22 CR STREETSCAPE, PHASE 1, Fort Meade, FLR20IQ32, held by Gibbs & Register, Inc.
October 2, 2025: WILDLIGHT PARCEL 21-1 - PHASE 1, Yulee, FLR20IQ33, held by Vallencourt Construction Company Inc

DUCK COURT PARK among its neighbors

EPA’s permit file holds 66 discharge permits in the Cypress Creek subwatershed (HUC 030902060300), FLR10XZ23 among them. Its county holds 447, 2 of them major permits; FLR10XZ23 is a minor permit.

Other permits in the Cypress Creek subwatershed (HUC 030902060300)

ACCEL INTERNATIONAL, Port Saint Lucie: FLR20EV28, minor permit, permit term to October 1, 2026
ALLAPATTAH FLATS - CULVERT AG-B1, Indiantown: FLR20EX22, minor permit, permit term to October 28, 2026
AMAZON.COM SERVICES LLC - DFH7, Port Saint Lucie: FLR05I923, minor permit, permit term to September 11, 2027
BELTERRA PHASE 2 AT SOUTHERN GROVE, Port Saint Lucie: FLR20GZ71, minor permit, permit term to February 17, 2029
C-23/24 SOUTH RESERVOIR PROJECT PACKAGE 1, Port Saint Lucie: FLR20HO95, minor permit, permit term to September 26, 2029
C23 ESTUARY DIVERSION PROJECT, Palm City: FLR20FZ07, minor permit, permit term to January 19, 2028
CENTRAL PARK, Port St Lucie: FLR10VU81, minor permit, permit term to March 16, 2028
CHENEY BROTHERS, Port Saint Lucie: FLR10VH71, minor permit, permit term to July 14, 2027
COSTCO WHOLESALE DEPOT PHASE 1 ON-SITE, Port Saint Lucie: FLR20HB97, minor permit, permit term to March 23, 2029
CYPRESS CREEK REHYDRATION, Okeechobee: FLR20GX55, minor permit, permit term to January 18, 2029

What the register holds for DUCK COURT PARK: its NPDES ID, its permit type and status, its dates, its address in Port Saint Lucie, Florida. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES FLR10XZ23.

Identity

Facility as filed	DUCK COURT PARK
Permittee as filed	GRSC, Inc.
NPDES ID	FLR10XZ23
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	October 2, 2025
Expiration date	October 1, 2030
Issuing agency	Florida Department of Environmental Protection
Address	Port Saint Lucie, FL 34953
Receiving water impaired	303(D) Listed
Subwatershed	Cypress Creek (HUC 030902060300)

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES FLR10XZ23.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES FLR10XZ23.

Inspections

EPA’s inspection file holds no inspection for NPDES FLR10XZ23.

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 FLR10XZ23.

Watch this permit

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Nearby on the register

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

The DUCK COURT PARK storm water construction coverage, issued October 2, 2025 to GRSC, Inc., is one of 346 storm water construction permits in St. Lucie County, which sets a local peer group of that size. Of those 346 permits, 1.4% have a violation on file, and this coverage has none of the 0 pollutants with a numeric limit or effluent exceedances recorded against it. Among the 346 county peers, 97.7% were issued earlier than this one, and it sits among 66 NPDES permits in the Cypress Creek subwatershed.