Overview
Al Tahoe 2
BMP Registration
Approved

10/01/2017 to 09/30/2022 (5 years)
46 credits
46 credits (100%)

Yes
No
No

Registration Area & BMPs
Declarations
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Credit Schedule
10/1/2017
5 years
09/30/2022
Registration reflects updated CEC numbers for Cartridge Filters per Sept. 2017 PLRM Stormwater Treatment BMP Data Evaluation Project (Northwest Hydraulic Consultants, Inc.), Regional Stormwater Monitoring Data, and League to Save Lake Tahoe citizen-science Pipe Keeper data.

100%
46
46
PLRM Models and Load Reduction
AlTahoe2 (Project1)
ExpectedRoads (Scenario2) Baseline Scenario 100%
ExpectedConditions (Scenario3) Expected Scenario 100%

12,359 46 165 N/A
3,221 8 80 N/A
Load Reduction 9,138 38 85 46
Treatment BMPs
Yes

Cartridge Filter ReganCartridgeFilter2 1,941 10 29 10 Essential No
Cartridge Filter ReganCartridgeFilter1 1,503 8 26 7 Key No
Treatment Vault ReganTreatmentVault1 1,245 9 0 6 Key No
Total 23

No distributed BMPs added to registration

The City plans to maintain treatment BMPs within CSLTG11 based on BMP RAM, the manufacturer’s specifications and NPDES inspection (drainage system inspection requirements). Cartridge filters are considered to be essential BMPs and will be maintained by Public Works staff on an as-needed basis dependent on inspection results. Maintenance consists of cartridge replacement and/or sediment removal. Replacement of the the cartridge filters will be performed during periods of dry weather, while cleaning of the pre-treatment vaults can occur a variety of conditions. The City cleans the pre-treatment twice per year at a minimum, and plans to replace the cartridge filters once every three years (or as required by inspections and the manufacturer’s protocols).
The City plans to maintain treatment BMPs within CSLTG11 based on BMP RAM, the manufacturer’s specifications and NPDES inspection (drainage system inspection requirements). Cartridge filters are considered to be essential BMPs and will be maintained by Public Works staff on an as-needed basis dependent on inspection results. Maintenance consists of cartridge replacement and/or sediment removal. Replacement of the the cartridge filters will be performed during periods of dry weather, while cleaning of the pre treatment vaults can occur a variety of conditions. The City cleans the pre-treatment twice per year at a minimum, and plans to replace the cartridge filters once every three years (or as required by inspections and the manufacturer’s protocols).
See attached CONTECH StormFilter Inspection and Maintenance Procedures PDF uploaded with registration for Maintenance Decision Tree.
Parcel BMPs
No
Single Family Residential
7% 0%
36.7 2.57 0 7.0% 0.0% n/a
36.7 2.57 0 7.0% 0.0% n/a
Multi-Family Residential
19% 0%
12.1 2.3 0 19.0% 0.0% n/a
12.1 2.3 0 19.0% 0.0% n/a
Commercial, Industrial, and Community Use
5% 0%
1.7 0.08 0 4.7% 0.0% n/a
1.7 0.09 0 5.3% 0.0% n/a
Other Pollutant Control Strategies

No other pollutant control strategies implemented in this registration