SCOPE & SCHEDULE TECHNICAL FLOWCHART POTENTIAL RETROFIT SITE - PowerPoint PPT Presentation

SCOPE & SCHEDULE

TECHNICAL FLOWCHART

POTENTIAL RETROFIT SITE TYPES • Existing Stormwater Facilities – Cost Effective Retrofits • Parcels w ≥ 3 ac Feasible Land Available (FLA) – FLA -> Shrub, Pasture, Grass – Potential Locations for New Facilities • Publicly Owned Parcels with <3 ac FLA – Potentially more feasible for pilot/demonstration projects • Right of Way (ROW) Segments – ROW Segments Draining to the Same Point

INITIAL POTENTIAL RETROFIT SITES Summary of PRS 0 Type Number Existing Facilities 163 Parcels with ≥ 3 acres FLA 106 Publicly Owned Parcels 42 with < 3 acres FLA ROW Segments 61 Total 372

EXISTING STORMWATER FACILITIES Filter 1 Screens • Upstream Areas Adequately Detained or Infiltrated with Limited Potential for Additional Drainage Area • Foot Print of Facility <5,000 ft 2 • Limited Existing and Potential Drainage Area

Existing Stormwater Facilities Filter 1 Southern Match Line Legend Stream Pipe or Ditch Private Stormwater Facility W a y E M Pacific Avenue a r t i n Parcel § ¦ 5 ¨ Jurisdiction Fones Rd SE Thurston County Lacey - Incorporated UGA 1 8 t h A v e S E Olympia - Unincorporated UGA Olympia - Incorporated UGA

Existing Stormwater Facilities Filter 1 Northern Legend Libby Rd NE Stream Pipe or Ditch Private Stormwater Facility Parcel Jurisdiction Thurston County Lacey - Incorporated UGA 3 6 t h A Olympia - Unincorporated UGA v e N E Olympia - Incorporated UGA South Bay Rd Match Line

Parcels with ≥ 3 ac FLA Filter 1 Screens • Upstream areas adequately detained or infiltrated with limited potential for additional drainage area • Parcels Located at Watershed Boundary • Limited Drainage Area • Poor Location of FLA on the parcel

Parcels with ≥ 3 ac FLA Filter 1 Southern Match Line Legend ROW Pour Point Stream Parcel > 3 continuous acres FLA Martin Way E Pacific Avenue < 3 continuous acres FLA § ¦ 5 ¨ Jurisdiction Fones Rd SE Thurston County Lacey - Incorporated UGA 1 8 t h A v e S E Olympia - Unincorporated UGA Olympia - Incorporated UGA

Parcels with ≥ 3 ac FLA Filter 1 Northern Legend ROW Pour Point Libby Rd NE Stream Parcel > 3 continuous acres FLA < 3 continuous acres FLA Jurisdiction Thurston County Lacey - Incorporated UGA 3 6 t h A v e N E Olympia - Unincorporated UGA South Bay Rd Olympia - Incorporated UGA Match Line

Publicly Owned Parcels <3 ac FLA Filter 1 Screens • Sensitive area (Forest or Wetland) • Existing Facility Occupies Parcel • Limited Existing and Potential Drainage Area

Publicly Owned Parcels <3 ac FLA Filter 1 Northern No Publicly Owned Parcels Legend E After Filter 1 N d R Stream y b b i L Parcel Public Parcel Private Parcel Jurisdiction Thurston County Lacey - Incorporated UGA 36th Ave NE Olympia - Unincorporated UGA South Bay Rd Olympia - Incorporated UGA Match Line

Publicly Owned Parcels <3 ac FLA Filter 1 Southern Match Line Legend Stream Parcel Public Parcel Martin Way E Pacific Avenue Private Parcel ¦ 5 ¨ § Jurisdiction Fones Rd SE Thurston County Lacey - Incorporated UGA 1 8 t h A v e S E Olympia - Unincorporated UGA Olympia - Incorporated UGA

ROW Segments Filter 1 Screens • < 1 acre of ROW

ROW Segments Filter 1 Southern Match Line Legend Pour Point Pipe or Ditch Stream Parcel ROW Segment Martin Way E Pacific Avenue Jurisdiction ¨ § ¦ 5 Fones Rd SE Thurston County Lacey - Incorporated UGA 1 8 t h A v e S E Olympia - Unincorporated UGA Olympia - Incorporated UGA

ROW Segments Filter 1 Northern Legend Pour Point Pipe or Ditch Libby Rd NE Stream Parcel ROW Segment Jurisdiction Thurston County Lacey - Incorporated UGA Olympia - Unincorporated UGA 3 6 t h A v e N E South Bay Rd Olympia - Incorporated UGA Match Line

Filter 1 Potential Retrofit Sites Summary of PRS 0 and PRS 1 Type PRS 0 PRS 1 Existing Facilities 163 7 Parcels with ≥ 3 106 13 acres FLA Publicly Owned 42 8 Parcels with < 3 acres FLA ROW Segments 61 32 Total 372 60

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