About Us

LOGE is a small business operated by a husband-and-wife team.  Dave Welch, M.S., RG, CEG, CHG, GP, has over 26 years experience in engineering geology, septic system design, geophysics, and environmental assessment.  Abby Racco, REPA, has 14 years professional experience preparing environmental assessments and San Joaquin County-required documents.  Together we have a wealth of knowledge about local environmental policies and regulations, and we have forged strong relationships with our local regulators and agencies.  We are located in Lodi, California, and serve San Joaquin, Sacramento, and surrounding counties.

Our Philosophy

Because we are a family-owned business, we can provide quick, professional service at below-industry rates.  We have the flexibility to meet any special requirements you may have for a project, including rush turn-around or in-person negotiation with regulators.

On the Side

When we’re not working, we like to explore the world.  This night photo was taken at Arenal Volcano during a trip to Costa Rica.  Up to a few years ago, Arenal has been one of the world’s most active volcanoes, with small eruptions about every hour.