Section 5.3.8 Frio County

Projected Need (Shortage)

Recommended Plan

Demand Reduction (Conservation) (L-10 Mun)

Total New Supply

5.3.8 Frio County Water Supply Plan

Table 5.3.8-1 lists each water user group in Frio 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 5.3.8-1.
Frio County Surplus/Shortage

Water User Group	Surplus/Shortage¹		Comment
Water User Group	2030 (acft/yr)	2050 (acft/yr)	Comment
City of Dilley	1,836	1,780	Projected surplus
City of Pearsall	1,225	1,108	Projected surplus
Rural Area Residential and Commercial	38	0	Projected surplus
Industrial	0	0	No projected demand
Steam-Electric Power	0	0	No projected surplus/shortage
Mining	0	0	No projected surplus/shortage
Irrigation	-76,506	-70,662	Projected shortage – see plan below
Livestock	0	0	No projected surplus/shortage
¹From Table 4-8, Section 4.1 – Water Needs Projections by Water User Group.

5.3.8.1 City of Dilley

The City of Dilley is projected to have adequate water supplies available from the Carrizo Aquifer to meet the city’s projected demand during the planning period.

Working within the planning criteria established by the SCTRWPG and the TWDB, it is recommended that the City of Dilley implement the following water supply plan (Table 5.3.8-2).

§ Municipal demand reduction (conservation) to be implemented in 2000. This project can provide an additional 51 acft/yr beginning in year 2000, decreasing to 34 acft/yr of supply in 2050 (See Section 6, Supplement 2 and Volume III, Section 1.1).

Table 5.3.8-2.
Recommended Water Supply Plan for the City of Dilley

The costs of the recommended plan for the City of Dilley are shown in Table 5.3.8-3.

Table 5.3.8-3.
Recommended Plan Costs by Decade for the City of Dilley

Plan Element	2000	2010	2020	2030	2040	2050
Demand Reduction (Conservation) (L-10 Mun)
Annual Cost ($/yr)	$12,504	$12,497	$12,523	$3,561	$3,550	$3,540
Unit Cost ($/acft)	$245	$231	$220	$111	$108	$104

5.3.8.2 City of Pearsall

The City of Pearsall is projected to have adequate water supplies available from the Carrizo Aquifer to meet the city’s projected demand during the planning period.

Working within the planning criteria established by the SCTRWPG and the TWDB,
it is recommended that the City of Pearsall implement the following water supply plan
(Table 5.3.8-4).

§ Municipal demand reduction (conservation) to be implemented in 2000. This project can provide an additional 133 acft/yr beginning in year 2000, decreasing to 90 acft/yr of supply in 2050 (See Section 6, Supplement 2 and Volume III, Section 1.1).

Table 5.3.8-4.
Recommended Water Supply Plan for the City of Pearsall

	2000 (acft/yr)	2010 (acft/yr)	2020 (acft/yr)	2030 (acft/yr)	2040 (acft/yr)	2050 (acft/yr)
Projected Need (Shortage)	0	0	0	0	0	0
*Recommended Plan*
Demand Reduction (Conservation) (L-10 Mun)	133	141	148	84	87	90
Total New Supply	133	141	148	84	87	90

The costs of the recommended plan for the City of Pearsall are shown in Table 5.3.8-5.

Table 5.3.8-5.
Recommended Plan Costs by Decade for the City of Pearsall

Plan Element	2000	2010	2020	2030	2040	2050
Demand Reduction (Conservation) (L-10 Mun)
Annual Cost ($/yr)	$32,648	$32,655	$32,629	$9,349	$9,360	$9,370
Unit Cost ($/acft)	$245	$232	$220	$111	$108	$104

5.3.8.3 Rural Area Residential and Commercial

The rural area of Frio County is projected to have adequate water supplies available from the Carrizo Aquifer, Sparta Aquifer, and Queen City Aquifer to meet the water user group’s projected demand during the planning period.

5.3.8.4 Industrial

There is no projected industrial water demand in Frio County, therefore no water management strategies are recommended for this water user group.

5.3.8.5 Steam-Electric Power

Steam-electric power is projected to have adequate water supplies available from the Carrizo Aquifer, Sparta Aquifer, and Queen City Aquifer to meet the water user group’s projected demand during the planning period.

5.3.8.6 Mining

Mining is projected to have adequate water supplies available from the Carrizo Aquifer, Sparta Aquifer, and Queen City Aquifer to meet the water user group’s projected demand during the planning period.

5.3.8.7 Irrigation

Irrigation’s current water supply is obtained from the Carrizo Aquifer, Sparta Aquifer, Queen City Aquifer, and run-of-river rights. Irrigation is projected to need additional water supplies in the planning year 2000. The following options were considered to meet the irrigation projected need:

§ Demand Reduction (Conservation) (L-10 Irr.) (See Section 6, Supplement 2)

Working within the planning criteria established by the SCTRWPG and the TWDB, it has been found that it is not economically feasible to meet all of the projected irrigation needs at this time, since the cost of the water management strategies with enough water supply to meet the needs far exceeds the ability of irrigators to pay for the water. However, the irrigation water conservation option will meet a part of the projected irrigation needs in Frio County where further irrigation conservation opportunity exists. It is recommended that individual irrigators implement the following water supply plan to meet a portion of the projected need for irrigation (Table 5.3.8-6).

§ Demand Reduction (Conservation) to be implemented in 2000. This project can provide an additional 5,947 acft/yr of supply.

Table 5.3.8-6.
Recommended Water Supply Plan for Irrigation

	2000 (acft/yr)	2010 (acft/yr)	2020 (acft/yr)	2030 (acft/yr)	2040 (acft/yr)	2050 (acft/yr)
Projected Need (Shortage)	71,125	67,645	64,365	76,506	73,520	70,663
*Recommended Plan*
Demand Reduction (Conservation) (L-10 Irr.)	5,947	5,947	5,947	5,947	5,947	5,947
Total New Supply	5,947	5,947	5,947	5,947	5,947	5,947

The costs of the recommended plan to meet the irrigation projected need are shown in Table 5.3.8-7.

Table 5.3.8-7.
Recommended Plan Costs by Decade for Irrigation

Plan Element

2000