Public Utility District No 1 of Snohomish Co 12/6/2017 Amendment

Appendix A Project Facilities and Components ani ' �� 1�> a. i t JK II 1�9 Yk o* � (�')i� , s ent: �11Descrip - 2!L:Vr �,�� a Cost Share 741, Culmback Dam Original impoundment structure that forms the Culmback Dam Stage I western end of the Spada Lake Reservoir; completed 1965; capacity of 11 billion gallons, dam crest elev 1402' msl Raised impoundment structure that forms the western After City end of the Spada Lake Reservoir; completed 1984 Share of Culmback Dam Stage II (north bank stabilization completed 1990); added Stage II is capacity of 39 billion gallons, dam crest elev 1470' Due msl Valve Chamber Completed 1965; including Access Tower, elevator, hydroelectric generator, and all valve control systems Morning Glory Spillway Completed 1965 (elev 1360' msl) and raised in 1984 and discharge works (elev 1450' msl) Water Temperature Phase 1 Auxiliary System, Culmback Dam, Conditioning System completed 1984; Phase 2, WTC Tunnel System, N completed 2018 Control Building Including outlet valve controls, sensors, alarms, and I, backup diesel generator; completed 1984 Including storage tank, containment, sensors, and Diesel Storage Building alarms; completed 2015 (replaced underground Y storage tank) Protecting Dam, Spillway, and Valve Chamber Safety Boom Access Tower, completed 1965 Security Systems Including cameras, poles, sensors, recorders, and I, access control; completed 1984 Communication Including antennae, tower(s), cabling, and Systems equipment; completed 1984; updated 2016 Blue Mountain Communication Including road, structures, antennae, cabling, and Systems tower(s); completed 1984; updated 2016 Spada Lake Including shorelines,but not boat launches or Spada Lake Reservoir recreation sites; completed 1965 and volume Y increased in 1984 2017 Amended Agreement(Henry M.Jackson Hydroelectric Project) Page A-1