Industrial Products and Services

San Diego's First Full Service Erosion Control Company

Ground Service Technology, Inc. (GST) was founded by Hank Erler as a private partnership in 2001 and became incorporated in the State of California in 2004. We hold Class A, B and C-27 licenses. Jennifer Erler became majority shareholder and CEO/President of GST in 2008. We are a certified WBE, DBE and SBE, CA License #847034.
  • BMP Selection, Design, Installation, Maintenance
  • Site Inspections

  • Water Quality Sampling
  • Street Sweeping
  • Onsite & Specialized Training

  • Water Filtration
  • Dust Control & Hydroseeding
  • Legal Representation

Celebrating our 11 year anniversary, we can proudly boast that no site under our care and supervision has ever received a fine!

GST's staff is truly some of the most highly trained and best in the SWPPP/Erosion Control industry. Our clients include Fortune 500 companies, small and mid-size local contractors, engineering firms and Federal, State and Local agencies. Our plans and field designs have been approved by the EPA, the Regional Water Quality Board, the Department of Wildlife, Fish and Game and the Army Corps of Engineers. We work to ensure you have exactly what you need.

#1 in Consulting, Controlling and Complying

With fines reaching well in excess of $30,000 per day for non-compliance, it has never been more important to choose the right company to design, engineer, inspect, install and ensure compliance with NPDES, SWPPP and Dust Control requirements.

GST is the right choice.

Erosion, Sediment & Pollution Control

  • Gravel/Sand Bags
  • Straw Wattles/Fiber Rolls
  • Erosion Control Blankets
  • BMP Installation and Removal
  • Silt Fencing Temporary / Reinforced
  • (ESA) Construction Fencing
  • Exclusionary Fencing
  • Turf Reinforcement Mats
  • Synthetic & Geo-Textile Fabrics
  • Construction Entrances & Shaker Plates
  • Flocculants
  • Concrete Washouts
  • Professional Turf Grass Mixes
  • Bonded Fiber Matrix (BFM)
  • Stabilized Fiber Matrix (SFM)
  • Cal Trans Compliant
  • Non - Irrigated Mixes
  • Hydro-mulching
  • Flower Mixes
  • Custom Mixes
  • Pasture Mixes
  • Native Mixes


  • Servicing/Maintenance of all BMPs
  • 24-Hour Emergency Service
  • Street Sweeping
  • Weed Abatement
  • Brush Clearing

SWPP - Storm Water Pollution Prevention

  • Construction, Industrial & MS4
  • Weekly, Rain & Quarterly Inspections
  • SMARTS Data Uploading & Guidance
  • Annual Report Preparation & Filing
  • Writing & Submission
  • Design/Engineering
  • Water & Soil Testing/Sampling
  • Education
  • Legal Representation

Experienced Staff

Jennifer Erler, QSD, QSP, CPESC, CESSWI
- Countless SWPPPs written, 100's of Inspections completed
- Experienced & Adaptable Trainer
Danis Bechter, QSP, CESSWI
- 20+ Years as Director and Head Inspector of NPDES/SWPPP
program for City of Poway
- Oversight of Public Works/Civil Engineering Inspectors
Frank Casteleneto, PE
- 25+ Years in design and engineering
- City Engineer for Auburn, CA, Thornton, CO and Poway, CA
over a 24-year period
Mandy Logan, CDT, OSP, CESSSWI
- SWPPP design, installation, inspection & training
focused since 2004
Anthony Palomarez, QSP, CESSWI
- Leads BMP Installation & Maintenance crews
- Years of site compliance experience
Michael P. Duff, Esq.
- California/Federal Licensed
- NPDES, SWPPP & Environmental Law


At our training facilities or on-site, we offer:

  • 1-, 2-, or 4-hour Permit Compliance Classes
  • Training for your Superintendants and Foremen
  • Training on Best Management Practices (BMPs), or
  • Customized programs to meet your needs.