https://www.usashooting.org/library/Youth_Development/HS_and_College_Programs/Lead_Management_-_NSSF.pdf

• EPA BEST MANAGEMENT PRACTICES FOR LEAD AT OUTDOOR SHOOTING RANGES. 

https://www.epa.gov/lead/best-management-practices-lead-outdoor-shooting-ranges

https://www.epa.gov/sites/production/files/documents/epa_bmp.pdf

• LEAD CONTAMINATION IN SOIL AT OUTDOOR FIRING RANGES

https://www.princeton.edu/~rmizzo/firingrange.htm

• OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA) LEAD REGULATIONS

https://nmic.org/nyccelp/laws/OSHA_Regulations_on_Lead.htm

• UNITED STATES DEPARTMENT OF COMMERCE ENVIRONMENTAL COMPLIANCE PROGRAM. 

http://www.osec.doc.gov/ofeq/OSEEP/EMS_EC_page.html

• EPA ENVIRONMENTAL STEWARDSHIP

https://archive.epa.gov/stewardship/web/html/

• SAFE HAZARDOUS WASTE RECYCLING 

https://www.epa.gov/sites/production/files/2016-02/documents/safehwrecyclingfactsheete00-001d.pdf