2025-09-10_HYDROLOGY - M1994005

• Permit No: M1994005
• IBM Index Class Name: Hydrology
• Doc Date: 9/10/2025
• Doc Name: Substitute Water Supply Plan
• From: Division of Water Resources
• To: DRMS
• Email Name: DMC
• Email Name: THM
• Media Type: D
• Archive: No

Appendix C3
Colona Pit
Full Build Out Operations Lagged Depletions Analysis
URF Inverted URF Full Build Out Operations Lagged Depletions
Depletions Lagged Depletions
1 0.12 12 0.03 (AF) (AF
2 0.25 11 0.03 Year Month A B
3 0.15 10 0.04 January 2.9
4 0.10 9 0.04 February 2.9
5 0.08 8 0.05 March 6.4
6 0.07 7 0.06 April 9.4
7 0.06 6 0:07 May 11.9
8 0.05 5 0.08 0 June 14.7
9 0.04 4 0.10 July 14.2
10 0.04 3 0.15 August 12.5
11 0.03 2 0.25 September 9.6
12 0.03 1 0.12 October 7.5
November 5.0
Notes: December 2.9
(1)See Appendix C1 for Colona Pit Unit Response Function January 2.9 6.8
(2)Year 0 depletions values assumed to equal full build out operations monthly February 2.9 6.2
depletions proposed under this SWSP. March 6.4 6.0
April 9.4 6.7
May 11.9 7.8
1 June 14.7 9.0
July 14.2 10.1
August 12.5 10.6
September 9.6 10.4
October 7.5 9.7
November 5.0 8.8
December 2.9 7.8
January 2.9 6.8
-February 2.9 6.2
March 6.4 6.0
April 9.4 6.7
May 11.9 7.8
2 June 14.7 9.0
July 14.2 10.1
August 12.5 10.6
September 9.6 10.4
October 7.5 9.7
November 5.0 8.8
December 1 2.9 7.8
SWSP Period Total 199.7 199.7
P:\061-052\000-Colona\swsp\2025 SWSP Renewal\Tables\ Wright Water Engineers,Inc. DES:JBH
Colona 2025 SWSP tables 1-8.xlsx 6/9/2025 CH K:PR F