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Nearby Septic — nearbyseptic.com · Verified septic directory · printed Sep 28, 2026
Texas › Caldwell County
County directory

Caldwell County septic services.

7 license-verified providers serve Caldwell County. Every listing is checked against TCEQ license records.

Updated August 16, 2026 · listings checked against TCEQ records Jul 30, 2026 – Aug 10, 2026

Caldwell County, at a glance
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License-verified providers listed
7
Permitting authorities
5 districts
Providers

Verified first, always labeled.

How listings are labeled
  • ✓ Tier 1 — License-matched
  • Tier 2 — Roster-matched
  • Tier 3 — Directory-sourced labeled “Unverified”
How we verify →
All 7 Aerobic Systems & Maintenance 6 Drain Field Repair 3 Septic Inspection 1 Septic Repair 3 Septic System Installation 3 Septic Tank Pumping 3

5M
5M Septic Systems LLC ✓ TCEQ Verified
Installer II · OS0024920 · Active — checked Aug 8, 2026
Septic Tank Pumping

Serving Austin, Caldwell, Colorado County, DeWitt + 7 more

(361) 798-9320 View profile
EN
Environmental & Aquatic Services LLC ✓ TCEQ Verified
Maintenance Provider · MP0001777 · Active — checked Aug 10, 2026
Aerobic Systems & MaintenanceSeptic Inspection

Serving Austin, Bastrop, Brazos, Burleson + 9 more

(832) 318-5984 View profile
FO
Forrest Nevill ✓ TCEQ Verified
Maintenance Provider · MP0001164  +  Installer II · OS0004799 · Active — checked Aug 8, 2026
Aerobic Systems & MaintenanceDrain Field RepairSeptic RepairSeptic System Installation

Serving Caldwell

(830) 857-3756 View profile
FO
Foster’s Septic Cleaning & Inspections ✓ TCEQ Verified
Installer II · OS0036694  +  Maintenance Provider · MP0002229 · Active — checked Jul 30, 2026
Aerobic Systems & MaintenanceSeptic Tank Pumping

Serving Caldwell

(512) 738-0582 View profile
HA
HaiDak Construction & Excavating LLC ✓ TCEQ Verified
Installer II · OS0036534 · Active — checked Aug 10, 2026
Aerobic Systems & MaintenanceDrain Field RepairSeptic RepairSeptic System Installation

Serving Bastrop, Caldwell, Fayette, Gonzales + 2 more

(512) 517-5026 View profile
ST
Standalone septic and dirt work ✓ TCEQ Verified
Installer II · OS0037826 · Active — checked Aug 9, 2026
Aerobic Systems & MaintenanceDrain Field RepairSeptic RepairSeptic System Installation

Serving Bastrop, Bell, Brazos, Burleson + 8 more

(512) 550-1716 View profile
ZW
Zwicke ✓ TCEQ Verified
Maintenance Provider · MP0001911 · Active — checked Aug 8, 2026
Aerobic Systems & Maintenance

Serving Caldwell, Comal, Gonzales, Guadalupe + 2 more

(210) 414-0044 View profile

iOrganic order is verified-first then A–Z and is never sold; featured slots, when they exist, are labeled. Methodology

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Permits

Who issues them here.

City Of Mustang Ridge Authorized Agent

Covers City limits

12800 US Hwy 183 S Mustang Ridge, 78610
(512) 243-1775
MKMCGUFFIN@GMAIL.COM
Official septic information ↗

City Of San Marcos Authorized Agent

Covers City limits

630 E Hopkins St, Bldg 5, San Marcos 78666
(512) 393-8440
sobrien@sanmarcostx.gov
Official septic information ↗

City Of Uhland Authorized Agent

Covers City limits

15 N Old Spanish Trail Uhland, 78640
(512) 914-6619
jimmymcclintock@msn.com
Official septic information ↗

City Of Niederwald Authorized Agent

Covers City limits

8807 Niederwald Strasse Niederwald, 78640
(512) 398-6338
4pranch@gmail.com
Official septic information ↗

Caldwell County Authorized Agent

Covers unincorporated County

1700 Fm 2720, Lockhart 78644
(512) 398-1803
miles479@hotmail.com
Official septic information ↗

Permit fees, forms & process

New installs and major repairs need a permit from the local authorized agent — usually the county, sometimes a city — and the rules that bind are the local ones.

This county’s full guide is still in production — the authority contact shown here is the official source in the meantime.

All Texas permit guides

Local rules

What’s different in Caldwell County.

Four things decide what you can build and what it costs: zoning, environmental protections, power for aerobic systems, and the ground itself. We publish each one only where we have checked it — and say so plainly where the answer is “same as the rest of Texas”.

Zoning & land use

Caldwell County permits septic through its Sanitation Department under a commissioners court order approved by TCEQ. One local instrument is geographic rather than county-wide: the county publishes a TCEQ interim order covering the Cherryville area specifically, so a parcel there sits under a different set of conditions from the rest of the unincorporated county. Check which one applies before designing a system.

Source: Caldwell County on-site sewage facility program page ↗ · retrieved Aug 7, 2026

Also: Texas Commission on Environmental Quality, OSSF authorized agent county lookup (OARS) — result for Caldwell County ↗ · retrieved Aug 7, 2026

Environmental protections

Nothing in Caldwell County changes this. Texas adds a separate approval path over the Edwards Aquifer recharge, transition and contributing zones, where TCEQ requires an Edwards Aquifer Protection Plan under 30 TAC Chapter 213. Elsewhere the Chapter 285 rules stand on their own.

How Texas permitting works

Checked against TCEQ, 30 TAC Chapter 213 (Edwards Aquifer), Subchapters A and B — Edwards Aquifer and Contributing Zone in Medina, Bexar, Comal, Kinney, Uvalde, Hays, Travis and Williamson Counties (chapter review date 8 March 2024) ↗ · retrieved Aug 7, 2026

Geology & soil

The dominant constraint here is clayey subsoil that water moves through too slowly (56.2% of rated soils), followed by flooding (10.4%). NRCS rates 63.3% of rated ground very limited for a standard soil absorption field, 20.8% for subsurface drip and 18.7% for surface application with disinfection. Where a conventional field will not pass, surface application is usually the route that does.

Source: USDA Natural Resources Conservation Service, Soil Survey Geographic Database (SSURGO), queried via Soil Data Access (gSSURGO vintage 21 November 2025) ↗ · retrieved Aug 7, 2026

i3 of 4 local factors researched for this county so far. Each one is published with the authority it came from and the date we read it. Methodology

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