5.3.16 Medina County Water Supply Plan
Table 5.3.16-1 lists each water user group in Medina County and their corresponding surplus or shortage in years 2030 and 2050. For each water user group with a projected shortage, or need, a water supply plan has been developed and is presented in the following subsections.
Table 5.3.16-1.
Medina County Surplus/Shortage
|
Water
User Group |
Surplus/Shortage1 |
Comment |
|
|
2030 |
2050 |
||
|
City of Castroville |
-331 |
-393 |
Projected shortage – see plan below |
|
City of Devine |
-677 |
-718 |
Projected shortage – see plan below |
|
City of Hondo |
-1,154 |
-1,284 |
Projected shortage – see plan below |
|
City of La Coste |
-195 |
-234 |
Projected shortage – see plan below |
|
City of Lytle |
|
|
See Atascosa County |
|
City of Natalia |
70 |
46 |
Projected surplus |
|
Rural Area Residential and Commercial |
196 |
-70 |
Projected shortage – see plan below |
|
Industrial |
464 |
414 |
Projected surplus |
|
Steam-Electric Power |
0 |
0 |
No projected demand |
|
Mining |
-72 |
-76 |
Projected shortage – see plan below |
|
Irrigation |
-65,382 |
-55,006 |
Projected shortage – see plan below |
|
Livestock |
0 |
0 |
No projected surplus/shortage |
|
1 From Table 4-16,
Section 4.1 – Water Needs Projections by Water User Group. |
|||
5.3.16.1 City of Castroville
The City of Castroville’s current water supply is obtained from the Edwards Aquifer. The City of Castroville is projected to need additional water supplies beginning in the year 2000. The following options were considered to meet the city’s projected need:
§ Demand Reduction (Conservation) (L-10 Mun.)
§ Edwards Irrigation Transfers (L-15)
Working within the planning criteria established by the SCTRWPG and the TWDB, it is recommended that the City of Castroville implement the following water supply plan to meet the projected need for the city (Table 5.3.16-2).
§ Municipal demand reduction (conservation) to be implemented in 2000. This project can provide an additional 43 acft/yr of supply in 2000, decreasing to 30 acft/yr of additional supply in 2050. (See Section 6, Supplement 2 and Volume III, Section 1.1).
§ Edwards Irrigation Transfers (L-15) to be implemented in 2000. This project can provide an additional 400 acft/yr of supply from 2000 to 2050.
Table 5.3.16-2.
Recommended Water Supply Plan for the City of Castroville
|
|
2000
(acft/yr) |
2010
(acft/yr) |
2020
(acft/yr) |
2030
(acft/yr) |
2040
(acft/yr) |
2050
(acft/yr) |
|
Projected Need (Shortage) |
228 |
255 |
283 |
331 |
362 |
393 |
|
Recommended Plan |
|
|
|
|
|
|
|
Demand Reduction (Conservation) (L-10 Mun.) |
43 |
45 |
48 |
28 |
29 |
30 |
|
Edwards Irrigation Transfers (L-15) |
400 |
400 |
400 |
400 |
400 |
400 |
|
Total New Supply |
443 |
445 |
448 |
428 |
429 |
430 |
The costs of the recommended plan to meet the City of Castroville’s projected need are shown in Table 5.316-3.
Table 5.3.16-3.
Recommended Plan Costs by Decade for the City of Castroville
|
Plan
Element |
2000 |
2010 |
2020 |
2030 |
2040 |
2050 |
|
Demand Reduction
(Conservation) (L-10 Mun.) |
|
|
|
|
|
|
|
Annual Cost ($/yr) |
$15,111 |
$15,152 |
$15,360 |
$7,435 |
$7,495 |
$7,455 |
|
Unit Cost ($/acft) |
$351 |
$337 |
$320 |
$266 |
$258 |
$249 |
|
Edwards Irrigation
Transfers (L-15) |
|
|
|
|
|
|
|
Annual Cost ($/yr) |
$37,647 |
$37,647 |
$37,647 |
$37,647 |
$37,647 |
$37,647 |
|
Unit Cost ($/acft) |
$80 |
$80 |
$80 |
$80 |
$80 |
$80 |
5.3.16.2 City of Devine
The City of Devine’s current water supply is obtained from the Edwards Aquifer. The City of Devine is projected to need additional water supplies beginning in the year 2000. The following options were considered to meet the city’s projected need:
§ Demand Reduction (Conservation) (L-10 Mun.)
§ Edwards Irrigation Transfers (L-15)
Working within the planning criteria established by the SCTRWPG and the TWDB, it is recommended that the City of Divine implement the following water supply plan to meet the projected need for the city (Table 5.3.16-4).
§ Municipal demand reduction (conservation) to be implemented in 2000. This project can provide an additional 76 acft/yr of supply in 2000, decreasing to an additional 48 acft/yr of supply in 2050. (See Section 6, Supplement 2 and Volume III, Section 1.1).
§ Edwards Irrigation Transfers (L-15) to be implemented in 2000. This project can provide an additional 800 acft/yr of supply from 2000 through 2050.
Table 5.3.16-4.
Recommended Water Supply Plan for the City of Devine
|
|
2000
(acft/yr) |
2010
(acft/yr) |
2020
(acft/yr) |
2030
(acft/yr) |
2040
(acft/yr) |
2050
(acft/yr) |
|
Projected Need (Shortage) |
666 |
656 |
653 |
677 |
700 |
718 |
|
Recommended Plan |
|
|
|
|
|
|
|
Demand Reduction (Conservation) (L-10 Mun.) |
76 |
79 |
82 |
45 |
46 |
48 |
|
Edwards Irrigation Transfers (L-15) |
800 |
800 |
800 |
800 |
800 |
800 |
|
Total New Supply |
876 |
879 |
882 |
845 |
846 |
848 |
The costs of the recommended plan to meet the City of Devine’s projected need are shown in Table 5.3.16-5.
Table 5.3.16-5.
Recommended Plan Costs by Decade for the City of Devine
|
Plan
Element |
2000 |
2010 |
2020 |
2030 |
2040 |
2050 |
|
Demand Reduction
(Conservation) (L-10 Mun.) |
|
|
|
|
|
|
|
Annual Cost ($/yr) |
$26,796 |
$26,755 |
$26,547 |
$11,948 |