1974-07-05_PERMIT FILE - M1974070 ‎(13)‎

• Permit No: M1974070
• IBM Index Class Name: Permit File
• Doc Date: 7/5/1974
• From: RMC
• To: WELD CNTY SERVICES BUILDING
• Media Type: D
• Archive: No

Table 2
Nelson-Flat4ron
Gravel Operation
Water Use*
Average Year
Surfa a Water No. of
Future Use Size Evaporation** Groundwater Cont. Requil"nient Shares"
Phase 1 Lake 38. 5 ac 81.0 of 10. 0 of 71 . 0 of 2. 0
,,. Phase 2 Lake 32. 2 67.8 8 . 4 59 .4 1 . 5
Phase 3 Lake 21.6 45.4 5. 6 39 . 8 1. 0
4.�
{ Critical Year
Phase 1 Lake 38. 5 ac 103. 9 of 22 . 0 of 81 . 9 of 2 . 0
Phase 2 Lake 32. 2 86.9 18 . 4 49 . 7 1.0
Phase 3 Lake 21.6 58. 3 12. 4 33 . 4 1i0
4 . 0
* from climatological data collected at Boulder .
** av , year evaporation equals 2 . 1 ft . ; critical year evaporation equals
2. 7 ft . (precipitation subtracted) .
*** No . of shares rounded to nearest share.