Aquifer Beaker

Edwards Aquifer

Aquifer Level 671.5'
5/25/17 - Official

The Edwards aquifer and its catchment area in the San Antonio region is about 8,000 square miles and includes all or part of 13 counties in south-central Texas.

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Year-Round Watering Hours

Watering with an irrigation system or sprinkler is allowed any day of the week before 11 a.m. or after 7 p.m.

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Aquifer Level 671.5 | Year-Round Watering Hours

eBill Site Maintenance

4 - 6:00 a.m.

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Frequently Asked Questions

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Compost Application Rates

The following are the application rates for typical uses of SAWS compost to achieve fertilizer benefits and soil improvement:

Use

Amount of Compost
Lbs. per 1000 sq.ft.
(depth in inches)

Instructions

TURFGRASSES

Establishment of soil incorporation 2000 - 6000
(1/2" - 2")
Mix with top 4" - 6" of soil.
Use lower rate on relative fertile soil, higher rate on infertile soil.
Surface Mulch 600 - 7000
(1/4" - 2 1/4")
Spread uniformly on surface:
(a) before seeding small-seed species (Bermuda); or
(b) after seeding large seed species (fescues)
Maintenance 400 - 800
(1/10" - 1/4")
Spread uniformly on surface.
On cool season grasses, either apply high rate in fall or lower rate in fall and again early in spring.

NURSERY CROP & ORNAMENTALS
(Shrubs and Trees)

Establishment of Plants 1900 - 7000
(1/2" - 2 1/4")
Mix with top 6" - 8" of soil.
Do not use where acid-soil plants (azalea, rhododendron, etc) are to be grown.
Maintenance 200 - 500
(1/10" - 1/5")
Spread uniformly on soil.
Can be worked into soil or used as mulch
Tree balling

Use at 50% rate

Mixed based on compost with bark or soil.
Potting soil mixes No more than 1/3 by volume Thoroughly water and drain mixes several times before planting to prevent salt injury to plants.
Blending materials: peat, sand, vermiculite, perlite and bark.