{"system":"water","region":"Colorado Springs","headline":"Colorado Springs draws about 64 million gallons of water a day — roughly 71,353 acre-feet a year — and around 75% of it is imported across the Continental Divide from other river basins. Where food leaves the city 3–5 days from empty, water holds a 1.5–3-year storage reserve — but new supply takes decades to build, and the binding constraint is a 1922 compact and the seniority of a water right.","figures":{"population":490000.0,"demand_mgd":63.7,"demand_gallons_per_year":23250500000.0,"demand_acre_feet_per_year":71353.0,"transmountain_import_share":0.75,"storage_reserve_years_low":1.5,"storage_reserve_years_high":3.0,"storage_reserve_days_low":547.5,"storage_reserve_days_high":1095.0},"units":{"population":"people","demand_mgd":"million gallons/day","demand_gallons_per_year":"gallons/year","demand_acre_feet_per_year":"acre-feet/year","transmountain_import_share":"fraction","storage_reserve_years_low":"years","storage_reserve_years_high":"years","storage_reserve_days_low":"days","storage_reserve_days_high":"days"},"assumptions":[{"name":"population","value":490000,"unit":"people","source":"Colorado Springs Utilities IWRP","source_url":"https://www.csu.org","as_of":"","note":"Refine to CSU's published demand/yield"},{"name":"gpcd_all_in","value":130.0,"unit":"gallons/person/day","source":"Municipal per-capita use planning figure","source_url":"","as_of":"","note":"All-in gpcd; CSU residential lower"},{"name":"gallons_per_acre_foot","value":325851.0,"unit":"gallons","source":"Colorado Springs Utilities IWRP","source_url":"https://www.csu.org","as_of":"","note":"Refine to CSU's published demand/yield"},{"name":"transmountain_import_share","value":0.75,"unit":"fraction","source":"Fryingpan-Arkansas Project / transmountain diversions","source_url":"","as_of":"","note":"Colorado-basin water to Front Range"},{"name":"storage_reserve_years","value":3.0,"unit":"years","source":"Colorado Springs Utilities IWRP","source_url":"https://www.csu.org","as_of":"","note":"Refine to CSU's published demand/yield"}]}