2009-08-19_REVISION - M1987049 ‎(3)‎

• Permit No: M1987049
• IBM Index Class Name: REVISION
• Doc Date: 8/19/2009
• Doc Name: Adequacy Review Response AR02
• From: Hart Environmental
• To: DRMS
• Type & Sequence: AR2
• Media Type: D
• Archive: No

Table 1
Ready Mixed - Ready Mixed Pit 1
SWSP Projected Depletions (May 2009 - July 2010)
(all values in acre-feet unless otherwise indicated)
09-10 Total includes May 2009 through April 2010.
[ 1] Surface Area of Exposed Groundwater is 25 9 acres.
[2] Gross Evaporation Rate equals 42 inches (3 5 feet) per year, based upon NOAA Evaporation Atlas. Monthly distribution based upon SB -120 Guidelines.
[3] Gross Evaporation equals [I] x [21/12.
[4] Effective Precipitation Rate equals 70% of total precipitation, based upon the Brighton weather station and NOAA Colorado Annual Average Precipitation 1951-1980 Map
[5] Effective Precipitation Credit equals [I] x [4]/12.
[6] Net Evaporation (Total Depletions) equals [3] - [5].
[7] Total Lagged Depletions equals the depletions in column [6] (and depletions back to January 2007 when mining began) lagged over 36 months
[8] Number of Days there was a call on the South Platte River.
[9] Out -of -Priority Depletions equal the fraction of the Total Lagged Depletions that occurred when there was a call on the South Platte River, equal to [71 x ([8] / # of days in month)
[10] Fulton Ditch Replacement credits based on 1.76 ac-ft/share as determined in the SACWSD change case engineering report for Case No 2001CW258 Return flow obligations reduced by fraction of
month under free river conditions.
[1 kJ Total Replacement Requirement is the total of the out -of -priority depletions and the Fulton Ditch retum flow obligation, equal to [9] - [ 10] if [ 10] is negative, otherwise equal to [9].
[14] 'Fulton credits delivered directly to the river.
[ 131 Stored Fulton Ditch credits released to South Platte in order to replace depletions Total storage is given in column [9] of Table 2
[14] RMCC's lease of excess augmentation credits from SACWSD or another source
[15] Remaining replacement requirement equals [II] - [ 12) - [13] - [14].
.,.. BBA
R9LCl ConSUitHtlt" 8/SHOP i17 f9(.17 FN ASSOC/A r,.s INC
HVI430• Boni Vi,, lc0.1RMPI SWSP rcxwul 2-1209 ,i, R1,401
2127/2009 1 20 01,1 10K
Surface Area
of Exposed
Groundwater
(acres)
Gross
Evaporation
Rate
(inches)
Total
Gross
Evaporation
Effective
Precipitation
Rate
(inches)
Effective
Precipitation
Credit
Net
Evaporation
(Total
Depletions)
Total Number
Lagged of Days
Depletions Out -of-
Priority
Out -of-
Priority
Depletions
Replacement
Credits from
Fulton Ditch
(27 shares)
Total
Replacement
Requirement
Fulton
HCU
Direct To
River
Releases
From
Storage
To River
Lease
Replacement
Remaining
Replacement
Requirement
Month
[1]
[2]
[3]
[4]
[5]
[6]
(7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
May
25.9
5.0
10.9
0.8
1.8
9.1
4.1
31
4.1
8.2
4.1
4.1
0
0
0
Jun
25.9
6.1
13 1
11
2 3
10 9
5.9
30
5 9
12 3
5.9
5.9
0
0
0
Jul
25.9
63
13.6
0.6
1.4
12.2
74
31
74
15.6
7.4
74
0
0
0
Aug
25.9
5.7
12.2
0.6
1 4
10.9
8.3
31
8.3
12.3
8.3
8 3
0
0
0
Sep
25.9
4.2
9.1
0.6
1.4
7.7
8.2
30
8.2
5.7
8.2
5.7
2.4
0
0
Oct
25.9
2.9
6.3
0.4
0.8
5.6
7.3
31
7.3
0.8
7.3
0.8
6 5
0
0
Nov
25.9
17
36
0.4
0.8
29
6.1
30
6.1
-25
86
0
8.6
0
0
Dec'09
25.9
1.3
2.7
0.3
06
2.1
49
31
4.9
-2.5
7.4
0
74
0
0
Jan'10
25.9
1.3
2.7
0.8
18
0.9
4.0
31
4.0
-1.6
5.6
0
0
5.6
0
Feb
25.9
1.5
3.2
I1
2.4
0.8
3.2
28
3.2
-1.6
4.9
0
0
49
0
Mar
25.9
2.3
5.0
2.0
4.2
0 8
2.7
31
2.7
-0.8
3 6
0
0
3.6
0
Apr
25.9
3.8
8.2
1.3
2.9
5.3
3.0
30
3.0
1.6
3.0
1.6
0
1.4
0
May
25.9
5.0
10.9
0 8
1 8
9.1
4 5
31
4.5
8 2
4.5
4.5
0
0
0
Jun
25.9
6.1
13.1
1.1
2.3
10 9
6.3
30
6.3
12.3
6.3
6.3
0
0
0
Jul
25.9
6.3
13.6
0.6
1.4
12.2
7 7
31
7.7
15.6
7.7
7 7
0
0_
0
09-10 Total
-
42 0
90.7
10.0
21 6
69.0
65.2
365.0
65.2
47 5
74 3
33 9
24 9
15.4
0
SWSP Total
-
59.4
128.3
12 5
27.0
101 2
83.8
457 0
83 8
83.6
92.8
52 5
24.9
15 4
0
09-10 Total includes May 2009 through April 2010.
[ 1] Surface Area of Exposed Groundwater is 25 9 acres.
[2] Gross Evaporation Rate equals 42 inches (3 5 feet) per year, based upon NOAA Evaporation Atlas. Monthly distribution based upon SB -120 Guidelines.
[3] Gross Evaporation equals [I] x [21/12.
[4] Effective Precipitation Rate equals 70% of total precipitation, based upon the Brighton weather station and NOAA Colorado Annual Average Precipitation 1951-1980 Map
[5] Effective Precipitation Credit equals [I] x [4]/12.
[6] Net Evaporation (Total Depletions) equals [3] - [5].
[7] Total Lagged Depletions equals the depletions in column [6] (and depletions back to January 2007 when mining began) lagged over 36 months
[8] Number of Days there was a call on the South Platte River.
[9] Out -of -Priority Depletions equal the fraction of the Total Lagged Depletions that occurred when there was a call on the South Platte River, equal to [71 x ([8] / # of days in month)
[10] Fulton Ditch Replacement credits based on 1.76 ac-ft/share as determined in the SACWSD change case engineering report for Case No 2001CW258 Return flow obligations reduced by fraction of
month under free river conditions.
[1 kJ Total Replacement Requirement is the total of the out -of -priority depletions and the Fulton Ditch retum flow obligation, equal to [9] - [ 10] if [ 10] is negative, otherwise equal to [9].
[14] 'Fulton credits delivered directly to the river.
[ 131 Stored Fulton Ditch credits released to South Platte in order to replace depletions Total storage is given in column [9] of Table 2
[14] RMCC's lease of excess augmentation credits from SACWSD or another source
[15] Remaining replacement requirement equals [II] - [ 12) - [13] - [14].
.,.. BBA
R9LCl ConSUitHtlt" 8/SHOP i17 f9(.17 FN ASSOC/A r,.s INC
HVI430• Boni Vi,, lc0.1RMPI SWSP rcxwul 2-1209 ,i, R1,401
2127/2009 1 20 01,1 10K