Table . Stakeholder Highly 2Ranked BMPs BMP Implementation Information Load Reduction Information Subbasin Management Measure Type BMP Cost TSS Sediment N Bacteria P Oil & Grease Quantity Metals Source 34, 35 Agriculture Alternative Shade Structures $75/head EC- 85% Peterson et al., 2011 34, 35 Agriculture Fencing Riparian Areas $1-1.05/lin ft w/ EQIP + $1/lin ft for individuals (includes maintenance but not labor) 90% 54% 60% 81% Sheffield et al., 1997, Landowner Resource Center, 2000 34, 35 Agriculture Grazing Management Strategies Prescribed grazing- $4.09/ac 8% 34% EC- 66% Peterson et al., 2011 33, 35 Agriculture Groundcover Urban Range Planting- Forage/Biomass planting- $58/ac 0 0.99 x x CWP, 1997 34, 35 Agriculture Livestock Water Quality Management Plan $10,000 x x x x x x 13, 23, 24 Stormwater Bacteria and Oil Control for Stormwater Inlets Proprietary Systems+A2 x x 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, Stormwater/ WQPP Biofiltration /Rain Garden $6/ft3 or $50,000/1 af pond 89% 85% TKN 98% Read et al., 2008, Limouzin et al., 2011, Davis et al., Establishment 99%
inspections & mitigation for problems) 24, 26, 27, 31, 33, 35 Stormwater Landscape Mulching $10-19/yard bulk Price does not include labor 93% 52% 32% Demars and Long, 1998, Faucette et al., 2005 13, 16, 20, 22, 23, 24, 25, 27, 29, 30 ,31 Stormwater Riparian Buffer - Herbaceous EQIP Average- $130,000/river mile ($64,000-$350,000 range), Or $70-$170/acre 79% 84% FC 95% 83% Young et al., 1980, Larsen et al., 1994 10, 11, 12, 24, 31 (Demo projects recommended in 9, 11, 13, 23) Stormwater/ LID, GI Parking Lot Pervious Design Strategies Capital= $1.64/ft2, Operation & Maintenance= $0.16/ft2 x x x x x x x x WQPP All basins Stormwater Groundcover Ag - $16.5-90/ac, Non-ag: Sod= $0.08-0.60/ft2 Seed=$25/lb or $120/5lb, @ 1lb/1000ft2 for short mix $1-2/ft2 soil prep Other groundcover plants= $5-7/ft2 x x x Cypress Creek WPP, 2014 10, 11 Stormwater/ Ordinance Pet Ordinance & Stations Ordinance-formative, $620/Collection Station Installation, $85 Annual Maintenance/Station 510 Cypress Creek WPP, 2014
13, 16, 20, 22, 23, 24, 25, 27, 29, 30 ,31 Stormwater Riparian Buffer - Herbaceous EQIP Average- $130,000/river mile ($64,000-$350,000 range), Or $70-$170/acre 79% 84% FC 95% 83% Young et al., 1980, Larsen et al., 1994 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35 Stormwater/ WQPP Vegetated Buffers $4,500 85% 25% 50% 10, 16, 20, 24, 25, 27, 31, 34 Stormwater/ WQPP Vegetative Filter Strips $7/lin ft seed, $22/lin ft sod, $0.30/ft2 seed, $0.70/ft2 sod Maintenance- $350/ac/year Native Filter Strip by EQIP- $255/ac 76% 41% 78% Low Impact Development Center Inc., 2010 Basins with significant riparian zones Stormwater/ WQPP Continued removal of invasive plants from riparian zones (especially ligustrun) Hourly costs, limited pesticide expenses x x x x x x x x 10, 11, 12, 13, 16, 20, 22, 23, 24, 25, 26, 27, 29, 30, 31 Stormwater/ WQPP Wet Pond $1.90 per ft3 storage 83% 89% 39% 83% 50% 89% Low Impact Development Center Inc., 2010
All basins Stormwater/ WQPP/ sourcewater protection Stormwater treatment train Cost and load reduction dependent on activity x x x x x x x x All basins Stormwater Existing and new BMP maintenance 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35 LID, GI/WQPP Green Roof $20.35 per Ft2 72% 93% All basins LID, GI/WQPP Rainwater harvesting • Generally $1/gallon • Range of + 2% of cost for annual maintenance • Roof RO Structure (inc. rain gutters & downspouts)- $3.25/lin. ft. • Rain Barrel= $50-75 + $5/year for maintenance x x x x x x Cypress Creek WPP, 2014 Urban basins LID, GI Pedestrian Walkways $2-7 ft2 + base material x x x All basin, especially 26, 35 Ordinance Tree Protection $660-3,500 Average cost x x x x x x and Anderson, 1982; adjusted for inflation)
Urban basins Ordinance Urban Wildlife Management – Deer $660-$3,500 average cost of selective thinning with some protection measures such as barricades x x x (Seila and Anderson, 1982; adjusted for inflation) All basins Ordinance Xeriscaping/ Nativescaping and appropriate landscaping Average yard - plus $0-1/ft2 x x x x All basins, especially 31 Ordinance Turf Grass Ordinance development + Cost to replace grass per household/ft2, Incentives = $20/100ft2 replaced with natives, Up to ½ staff person salary for project x x x All basins Of San Marcos Stormwater Technical Manual Floodplain Management and Stormwater Detention, Erosion Control Measures and Water Quality BMPs, Easements varies x x x x x x x x
and maintenance Urban basins Ordinance/ Stormwater Urban stormwater districts Varies (exemption with fee) x x x x x WQPP All basins Incentives, Ordinance Water Conservation Pricing Strategies varies x Urban basins Incentives Habitat Conservation – Urban • Average land value cost of purchase (~$8500/ac) or up to $750 annually to maintain. • For urban, 1/2 ac = between $100-400 to establish • Maintenance (urban) = <$50/year x x x x All basins Incentives/ Water quantity Rain/soil moisture sensors $13-200, depending on level of technology x x All basins Incentive/ Ordinance/ LID, GI Fast track permitting process for LID, GI Varies (may include fee reduction) x x x x x x x All basins Volunteer activities (in conjunction with E/O pick-ups, planting native plants/trees, water quality monitoring, tubing varies x x x x x x x x