Sustainable Products — San Antonio, TX
STA-Certified Compost
Premium STA-certified compost produced at our San Antonio facility — derived from recycled organic waste and tested for quality you can trust. Pickup only. Bulk quantities available for farms, landscaping, and municipalities.
The Basics
STA-Certified Compost — Produced in San Antonio, Available for Pickup
Southwaste’s compost is the final link in our circular waste management chain — and it all happens right here at our San Antonio processing facility. Organic solids recovered from our liquid waste operations are composted into a nutrient-rich soil amendment that carries the US Composting Council’s Seal of Testing Assurance (STA). That STA certification means every batch is regularly lab-tested for pathogens, heavy metals, stability, and nutrient content — so you know exactly what you are putting on your fields. This is not a byproduct. It is a high-quality, tested, certified product. Available for pickup only at our San Antonio facility in bulk quantities. Farms, nurseries, landscape contractors, municipalities, and erosion control projects — come get it by the truckload. By choosing Southwaste compost, you are supporting a system where waste becomes a resource — right here in Texas.
The Importance
Why Southwaste STA-Certified Compost
STA-Certified & Lab Tested
Our compost carries the US Composting Council Seal of Testing Assurance. Every batch undergoes rigorous lab testing for pathogens, heavy metals, stability, nutrients, and maturity; results are publicly available.
Nutrient-Rich Formula
Derived from diverse organic feedstocks, our compost delivers a broad spectrum of nutrients and organic matter that synthetic fertilizers cannot replicate. Lab reports confirm NPK, micronutrients, and organic matter content.
Closed-Loop Sustainability
Your compost purchase directly supports our liquid waste recycling operations — creating a market for recovered materials and keeping organic waste out of landfills entirely.
Proudly San Antonio
Produced right here in San Antonio, Texas. No shipping from out-of-state facilities. Local production means a lower carbon footprint and supports the Texas circular economy directly.
Our Process
How to Get Our Compost
Contact Us for Availability
01
Tell us about your project — acreage, application type, and volume needed. We will confirm current batch availability and provide bulk pricing.
Get Your Quote
02
We provide bulk pricing based on volume. Competitive rates for truckload quantities — the more you take, the better the per-yard price.
Pick Up at Our San Antonio Facility
03
Compost is available for pickup only at our San Antonio processing facility. Bring your dump truck, trailer, or container — we load you up during business hours.
Apply & Grow
04
Spread and incorporate per your application method. We provide application rate recommendations based on your soil type and crop or project goals — backed by our lab test data.
what you get
Every Compost Pickup Includes
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STA-certified, lab-tested, screened organic compost
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Loading at our San Antonio facility during business hours
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Application rate recommendations for your specific use
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Consistent quality — every batch meets STA specifications
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Lab test reports available for every batch upon request
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Volume flexibility — from small orders to full truckloads
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Supporting documentation for organic certification programs
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Competitive bulk pricing with volume discounts
Pick Up STA-Certified Compost in San Antonio
Whether you are farming 1,000 acres or landscaping a new development, our STA-certified compost delivers results. Come get it at our San Antonio facility — pickup only.
Who We Work With
Who Uses Our Compost
From large-scale agriculture to municipal landscaping, our STA-certified compost serves a wide range of applications across Texas.
US Composting Council STA-Certified
The Seal of Testing Assurance means every batch is independently lab-tested for pathogens, heavy metals, stability, maturity, and nutrients. Results below are public, no surprises, no mystery dirt.
COMPOST TECHNICAL DATA SHEET
October 30, 2024
STA Compost Analysis Report and Results
October 30, 2024
COMPOST TECHNICAL DATA SHEET
September 24, 2024
STA Compost Analysis Report and Results
September 24, 2024
COMPOST TECHNICAL DATA SHEET
August 27, 2024
STA Compost Analysis Report and Results
August 27, 2024
Who We Work With
Who Uses Our Compost
From large-scale agriculture to municipal landscaping, our STA-certified compost serves a wide range of applications across Texas.
Agriculture & Farming
Row crops, orchards, vineyards, and pasture — bulk compost builds soil organic matter and reduces fertilizer costs.
Landscaping & Nurseries
Premium soil amendment for landscape installations, plant production, and turf establishment across Texas.
Municipal Projects
Parks, medians, public landscaping, and community gardens — STA certification gives municipalities confidence in product quality.
Erosion Control
Compost blankets and berms for construction site erosion control, slope stabilization, and revegetation projects.
Commercial Developers
Large-scale landscape installations for new commercial developments, corporate campuses, and retail centers.
Golf Courses & Sports Fields
Topdressing and soil amendment for turf management — healthier turf with less water and fewer chemical inputs.
Got Questions?
Compost FAQ
Common questions about our STA-certified compost, pickup process, and lab testing.
What is a STA certificate and why does it matter?
Where is the compost facility in San Antonio?
What is your compost made from?
Can I see the lab reports before purchasing?
What are the pick up hours and minimum order quantities?
Still have questions?
Our team is happy to walk you through anything — pricing, scheduling, compliance requirements, or technical details.
Complete Your Wastewater Solution
Related Services
Southwaste offers a full suite of commercial wastewater and plumbing services to keep your facility running smoothly, compliant, and environmentally responsible.
Grease Trap Services
Grit Trap Services
Commercial Septic Services
Liquid Waste Recycling & Disposal
Vacuum Truck Services
Lint Interceptor Services
Hydro-Jetting Services
Lift Station Maintenace
Grease Trap Repair
Commercial Plumbing
Comprehensive commercial plumbing and repair