Climate changes

1. Climate changes Enviro response Water impacts Actions • Water use restrictions • WaterSmart conser- • vation program • More public education • Address concerns • over water meters • Backup power supply • for pumphouses • Turbidity water treat- • ment ($20 mil) • Managing reservoir • levels is key? • Take advantage of • dam/ hydro generation • opportunities • Increased knowledge • of Columbia River • Treaty • Protect/ secure tanks/ • PRTs (interface park • areas around tanks) • Ask for development • referrals • Increase storage capa- • city • Warmer, hotter summer • Lake water warming • Thermocline drop (now • at 50 ft) • More algae in lake • More residential demand *** • Increased lake water • turbidity • Fish habitat compromised • Pumps working more • frequently to keep up with • increased demand • More wear and tear on • infrastructure • More prone to line breakage • Power outages more • frequent • 12 hrs limit if midsummer events • Power outages causes pumps • to not work – potentially • causing flooding in homes • Less water in reservoir • (due to increased US demand) • Pumphouses and reservoirs • in fire prone areas • ‘Chickadee’ in harm’s way Temp • Hotter drier summer Precipitation • More wildfires • High winds More extreme events Priority actions are in bold Watershed & water/sewer infrastructure (summer)

2. Climate changes Enviro response Water impacts Actions • Increased damage to pipes • Shifting pipes • Breaks in water lines *** • Increased flooding in res- • idences and to infrastructure • (tracks already taken out • in winter flood) • Damage to treatment • infrastructure • Increased safety hazard • Road detours (flooding • response) • More frequent freeze/ • thaw cycles • Less frozen ground • Less snow (causing frost • level to drop) • Emergency • planning *** • Bury water lines • deeper • Develop solid back- • up/training procedures • New backup portable • generator Temp • Less snow • Increased ‘frost • penetration’ • More rain on snow • Increase in winter fires Precipitation Snow • Heavy snow fall (07,2000 • 1997) • Heavy wet snow • High winds • Cold snap • Power outages • Downed trees • Damage to tanks • Increased emergency • response • Road closure • Larger pipes for • stormwater • Long term stormwater • plan • More overtime and • emergency response • staff More extreme events Watershed & water/sewer infrastructure (winter) Water (Winter)