On October 19, official readings put the J-17 10-day average at 640.3 feet, Canyon Lake at 97% of conservation storage and the Comal County drought index average at 551.
For residents, the readings describe different conditions: aquifer and spring flow, stored lake water and elevation, and ground dryness.
From the source record
KBDI measures ground dryness on a 0–800 scale; these are the reported county range and average, not lake or aquifer levels.
Aquifer and spring flow
The Edwards Aquifer Authority’s October 19 reading put the J-17 10-day average at 640.3 feet and the Comal Springs 10-day average at 155 cubic feet per second. Its October 18 readings were 640.5 feet and 156 cubic feet per second, respectively. The EAA's October 19 entry lists San Antonio Pool Stage 2 with a 30% pumping reduction. That designation describes aquifer pumping; residents should consult their water provider for customer watering rules.
Canyon Lake storage and elevation
The Texas Water Development Board reported Canyon Lake at 97% of conservation storage on October 19. That percentage describes stored water relative to the lake’s conservation capacity; it is not the lake’s surface elevation.