Webinar Wednesday: Alternate Technology Sewage Systems Available for Design and Planning in PA

  • 09 Oct 2019
  • 12:00 PM - 1:00 PM
  • Online


  • Member of PSLS
  • Not a member of PSLS
  • Member of a professional organization in the Geospatial industry such as NSPS, PSPE, PCPG, etc. Contact sdreese@wannerassoc.com for code.

Wednesday Webinar 

Alternate Technology Sewage Systems Available for Design and Planning in PA

Presented by: Laurel Mueller, CPSS 

Date: October 9, 2019

Time: 12:00 PM - 1:00 PM


  • PSLS Members: $40
  • Non-Members: $60
  • Member of  Other  Professional Organization: $40

CE Credits: 1 PDH


PA DEP’s web site “Onlot Alternate Technology Listings” was last revised February 2017.  There are 26 listings.  They can be divided into bed types, pre-treatments, alternative bed materials, and components.

This presentation is an overview, covering the most commonly used listings.  These technologies enable use of land when soil testing by the SEO “flunks” for conventional type systems due to steepness, shallow seasonal high water table, shallow rock, or insufficient space.  They can provide an alternative to the space-hogging sand mound bed for aesthetic reasons.  Some alternate systems are be less expensive than “conventional” system types.  With the passage of Act 26, alternate systems can be proposed for new land development.  You will learn how this impacts the Planning Module process.


Laurel F. Mueller is President/Owner and Certified Professional Soil Scientist (CPSS) for Soil Services Company, Inc, a consulting firm she started in 1984.  Laurel started Mountain Wastewater Management in 2008 to sell and service alternate technology sewage system components.

            Laurel represents CPSSs at Soil Science Society of America (SSSA), and is national chair for SSSA Consultants Division.  She is a PA Sewage Enforcement Officer, a member of PASEO, a Pennsylvania Septage Management Assocation (PSMA) Instructor for Onlot Wastewater System Inspections, and a PSMA Board member.  She served on the Board of Pennsylvania Association of Professional Soil Scientists (PAPSS) and as national president of National Society of Consulting Soil Scientists (NSCSS).  Laurel has been a PSLS Associate member for more than 30 years!

            Her expertise includes soil classification, high-intensity soil mapping, hydraulic conductivity, hydric soils, wetlands, stormwater, geomorphology for archaeology, expert testimony, and sewage facility  planning, designs and maintenance.

            She mapped 250,000 acres of soil in Oregon with the USDA-SCS Soil Survey program, and worked as a Materials Engineering Technician for U.S. Forest Service in Missoula, Montana.

            Laurel volunteers with Eldredsville Volunteer Fire Company as EMT and FireFighter-1.

            Laurel has an M.S. in “Resource Conservation/ Land Capability Analysis” (1977) from University of Montana and a B.S. in “Resource Economics” (1974) from University of New Hampshire, with a focus on Land Use Planning.

Note: Members of other Professional societies such as PSPE, NSPS, ACSM, or other state surveying societies may register at the discounted price. In order to receive the necessary code, registrants must contact PSLS with proof of membership. Please email Shelly Dreese at sdreese@wannerassoc.com or call 717-441-6057, ext. 130.

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