Water Statement for CAL-A, Rocky View County, Alberta. August 2026.
Every figure below was measured on the lines, continuously, by sensors whose trust was scored every window, and signed into a ledger that the parties named at the end of this document can replay. Nothing here was estimated from invoices or averaged after the fact.
4,312 m³
withdrawn
municipal reclaimed supply · meter M-01
1,788 m³
returned
sanitary sewer · agreement SW-22
1,066 m³
reused
blowdown recovered to make-up
2,524 m³
consumed
evaporation and drift · 61.0% of August envelope
1,035 m³
indirect
water embedded in grid electricity · shown separately, never in the total
0
excursions
no window exceeded the envelope
Verification
| windows verified | 2,976 of 2,976 | 15-minute windows, no gaps |
| verdicts | 2,961 PASS · 15 HOLD · 0 FAIL | HOLD windows excluded from the consumed figure and listed below |
| sensor trust | 7 sensors · mean 0.97 | turbidity Q-02 drifted on Aug 14, recalibrated Aug 15, 15 windows held |
| envelope | v1.2 · 61.0% used | August ceiling 4,137 m³ at basin stress 0.96 |
| ledger | sha256 9f3a…c41e | 2,976 chained records · signed guardian-key-01 |
Exceptions
Aug 14, 09:15Z to 13:00Z. Turbidity sensor Q-02 drifted 0.6 NTU per hour against its reference. All fifteen windows were held, the product valve was unchanged, and the windows are excluded from the consumed total above. Recalibrated Aug 15, 08:40Z by operator K.N. Lab sample LB-2261 confirmed 0.12 NTU.
Parties with read access to the ledger
| operator | CAL-A site lead | portal · full |
| Rocky View County | Utility Services | portal · read-only |
| Stoney Nakoda Nations | Water office | portal · read-only |
| Alberta Environment and Protected Areas | Licence 00412-A | statement · monthly |