LT Info | Stateline Stormwater

Registration

Douglas County, NV

Stateline Stormwater

Overview

Jurisdiction

Douglas County, NV

Name

Stateline Stormwater

Type

BMP Registration

Status

Approved

Timeframe

10/01/2023 to 09/30/2028 (5 years)

Annual Credit Potential

106 credits

Establishment Year Credit Potential

106 credits (100%)

Treatment BMPs Included in Registration

Parcel BMPs Included in Registration

Yes

Other Pollutant Control Strategies

Supporting Documents

EWCC_CONNECTIVITY MEMORANDUM_12-1-16.pdf 2023 200K CONTRIBUTION PER MEMBER BREAKOUT.pdf

Registration Area & BMPs

Declarations

Download Table

Credit Schedule

Establishment Date

10/1/2023

Registration Duration

5 years

Registration End Date

09/30/2028

Duration Rationale

BMP certificates were updated by the TRPA in water year 2025, therefore this registration is being updated from half credit to full credit.

Establishment Year Credit Potential

100%

Water Year 2024 Credit Potential

106

Water Years 2025 - 2028 Credit Potential

106

PLRM Models and Load Reduction

PLRM Zip Archive

Download StatelineStormwater2025.zip Summary Report

Models and Scenarios

Model Name	Scenario Name	Scenario Type	Catchment Connectivity
SSWA_2024 (Project4)
	Baseline (Scenario1)	Baseline Scenario	70%
	UpdatedExisting (Scenario3)	Expected Scenario	70%

Load Reduction Details

	FSP (lbs)	TP (lbs)	TN (lbs)	Credit Potential
Baseline Load	28,109.9	105.7	381.5	N/A
Expected Load	6,794.9	25.9	100.8	N/A
Load Reduction	21,315	79.8	280.7	106

Treatment BMPs

Treatment BMPs Included in Registration

Centralized/PLRM BMPs

Treatment BMP Type	BMP Name	Change in FSP Reduction (lbs)	Change in TP Reduction (lbs)	Change in TN Reduction (lbs)	Credits	Water Quality Importance	Pre 2004 BMP
No centralized BMPs added to this registration

Distributed BMPs

Treatment BMP Type	BMP Name	Water Quality Importance	Water Quality Importance Rationale	Pre 2004 BMP
No distributed BMPs added to registration

Parcel BMPs

Parcel BMPs Included in Registration

Yes

PLRM Parcel BMP Model Details

		Total Area (acres)	BMP Area (acres)	Source Control Area (acres)	BMP Area (% of total)	Source Control Area (% of total)	FSP (lbs/yr)
Single Family Residential
	Standard Baseline				7%	0%
	Baseline Scenario	1.1	0.08	0	7.3%	0.0%	6.7
	Expected Scenario	1.1	0	0	0.0%	0.0%	7.2
Multi-Family Residential
	Standard Baseline				19%	0%
	Baseline Scenario	15.6	2.96	0	19.0%	0.0%	30.7
	Expected Scenario	15.6	0	0	0.0%	0.0%	37.5
Commercial, Industrial, and Community Use
	Standard Baseline				5%	0%
	Baseline Scenario	78.8	3.94	0	5.0%	0.0%	32231.9
	Expected Scenario	78.8	75.48	0	95.8%	0.0%	2222.6

Water Quality Importance

Essential

Maintenance Plan Summary

Douglas County worked with the Tahoe Regional Planning Agency and Midkiff and Associates to produce maintenance documentation of the shared water quality system that makes these properties eligible for BMP certificates. The BMP certificates were updated in water year 2025. NCE will be taking over the maintenance coordination and reporting for the SSWA going forward, so it will be easier to ensure that the BMP certificates don't expire. We will be reporting maintenance to TRPA annually.

Inspection Plan Summary

Douglas County will work with the Stateline Stormwater Association to compile maintenance documentation prior to the expiration of the BMP certificates. It will be provided to TRPA annually.

Additional Implementation Information

Land Use and Certificate Statistics

Stateline Stormwater-CertificateStatistics-01_23_2026.pdf

Other Pollutant Control Strategies

No other pollutant control strategies implemented in this registration