1. Public Law 93-523, Safe Drinking Water Act, US 93rd Congress, S. 433 1974
2. USEPA. National Interim Primary Drinking Water Regulations.;Fed. Reg.,1975
3. USEPA. Drinking Water Regulations, Radionuclides.;Fed. Reg.,1975
4. USEPA. Control of Organic Chemical Contaminants in Drinking Water, Interim Primary Drinking Water Regulations.;Fed. Reg.,1978
5. USEPA. National Secondary Drinking Water Regulations, Proposed Regulations.;Fed. Reg.,1977