Sierra Colina Village
P. O. Box 129
Lake Tahoe, NV 89448

Planning for...
LEED* Green Certification
Energy Star Rating
Pedestrian & Bike Trails
All Fire Sprinklered Homes
Preserving Open Space
Moderate Income Homes

As discussed in the Sierra Colina Final EIS at Master Response F (pages 2-249 through 2-2-253 of the Final EIS), Sierra Colina’s water quality design engineer (nhc) designed the TMDL urban storm water runoff model and conducted quantitative analyses for the Sierra Colina Final EIS (see Final EIS Appendix AA: Supplemental Water Quality Analysis) which demonstrate that completion of the Sierra Colina Project will improve water quality over existing conditions through:

• Quantified post-project 28% to 70% reduction in pollutant loads from stormwater runoff for pollutants of concern to lake clarity (i.e., suspended sediment, phosphorus, and nitrogen) over storm water pollutant loading from existing conditions on the parcel

• Advanced, TMDL Treatment Tier 2, Storm Water Management Plan, substantially exceeding TRPA Code requirements, with pre-treatment for fine sediments & proactive HOA Funded Maintenance of BMPs

• Quantified post-project average concentrations of pollutants of concern to lake clarity (i.e., suspended sediment, phosphorus, and nitrogen) from storm water runoff estimated to be between 60% and 90% less than TRPA Code maximum allowable discharge concentrations

• Reduction in post-project soil erosion from the parcel versus the soil erosion from existing conditions on the parcel

• Removal of unauthorized Echo Drive discharge pipe on the parcel to stop, redirect & treat substantial public storm water runoff

• Pre-Treatment & Detention on the Sierra Colina parcel at its expense of off-site, public storm water from 26,000 sq. ft. of Echo Drive

• Remove, restore & re-vegetate unpaved utility road in Burke Creek SEZ on the parcel

• Decommission extensive unauthorized trails through and across Burke Creek SEZ

• Remove encroaching conifers (white firs) harming Burke Creek banks in SEZ on the parcel 

• Pro-active Sierra Colina HOA funded aggressive maintenance program of stormwater management system in perpetuity

• Support other critical elements of Douglas County EIP #679 Phase II on Sierra Colina parcel

• Cooperate with TRPA EIP #161 Burke Creek Restoration  

Sources: FEIS Appendix AA and Master Response F (Final EIS at pages 2-249 through 2-253)

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