These are all I have in the 4,000 series

API Publication 4465 Dec. 1987 - Evaluation of Treatment Technologies for Listed Petroleum Refinery Wastes.pdf

[link Point to another website Only the registered members can access]
API Publication 4468 Nov. 1999 - Temporary Treatment Options for Petroleum Distribution Terminal Wastewaters.pdf

[link Point to another website Only the registered members can access]
API Publication 4653 June 1997 - Fugitive Emission Factors for Crude Oil and Product Pipeline Facilities.pdf

[link Point to another website Only the registered members can access]
API Publication 4675 Dec. 1999 - Fate and Environmental Effects of Oil Spills in Freshwater Environments.pdf

[link Point to another website Only the registered members can access]
API Publication 4689 Aug. 2001 - Chemical Human Health Hazards Associated With Oil Spill Response.pdf

[link Point to another website Only the registered members can access]
API Publication 4709 Feb. 2001 - Risk-Based Methodologies for Evaluating Petroleum Hydrocarbon Impacts at Oil and Natural Gas E&P Sites.pdf

[link Point to another website Only the registered members can access]