🚀 go-pugleaf

I am in the initial stages of conducting an environmental assessment of an
abandoned skeet and trap range in southern California.  This site has been
used as a shooting range since the 1940's and has lead shot scattered over
an area of approximately 10 acres.  The shooting range is located on a
bluff directly above a seasonal streambed.  Runoff from the site goes
directly into this stream during heavy storms.  The non-particulate lead
content of the shallow soil at the site ranges from 30 to 2200 mg/Kg (EPA
7240, TTLC).  The mean lead concentration appears to be around 300 to 500
mg/Kg.  The local agencies are pressing the landowner to complete the
assessment and begin to clean up the lead contamination at the site.  We
have not yet discussed cleanup levels or cleanup technologies with the
agencies.  

I am interested in learning of any shooting range cleanup case histories
that would be similar to the above-described situation.  Also, what level
of lead contamination in soil has been considered acceptable by EPA at
rural shooting ranges?  Has anyone studied lead soil migration
characteristics?  

Finally, what field-proven technologies exist for the remediation of
lead-contaminated soil?

Please contact me by E-mail or call me directly:

John Conlan
Senior Project Manager
Chaparral Associate
(805) 659-5191

Thanks!