Table 4-3: Some Key Additional Requirements and Considerations for WWTPs*
[Row 1] [Column 1] WWTP Type
[Row 1] [Column 2] Additional Requirements 
[Row 1] [Column 3] Contaminant-Specific Considerations
[Column 1 Content] POTW
[Column 2 Content]
Water meets all the:
– Federally prohibited discharge standards
– Federal categorical pretreatment requirements (which vary by industrial process category)
– State laws and regulations
– Local limits established by the POTW to prevent either:
·Pollutants in the treated water from passing through the POTW untreated
·Interferences with the POTW (i.e., inhibition or disruption of POTW treatment process or operations or sludge process, use, or disposal)
[Column 3 Content] [Row 1]CHEM, TOXIN,
• Water considered a RCRA hazardous waste may be subject to additional disposal requirements described in the following documents:
– EPA’s Guidance Manual for the Control of Wastes Hauled to Publicly Owned Treatment Works, September, 1999, which explains how smaller POTWs without pretreatment programs (see box below) accept and control hauled wastewater†
– EPA’s Guidance Manual for the Identification of Hazardous Waste Delivered to POTWs by Truck, Rail or Dedicated Pipe, June 1987, which provides guidance on hazardous waste hauled to POTWs‡
• Water classified as hazardous may also be subject to additional reporting requirements, as listed in 40 CFR 403.12(p).
• If the treated water is considered a RCRA hazardous waste and is shipped to a WWTP for disposal (or another WWTP if the contamination occurred at a wastewater
treatment system), the receiving WWTP may become a hazardous waste facility and may be subject to additional RCRA regulations.
[Column 3 Content] [Row 2] RAD,
Maximum federal or state regulatory concentrations for direct discharge to surface water and release into sewers may apply for radioactivity.
[Column 3 Content] [Row 2] BIO,
Some states require medical/infectious waste to be disposed of as RCRA hazardous waste while others enforce special medical/infectious waste requirements.
[end table 4-3]
[footnote]* Please note that regardless of the type of facility, the discharge must be authorized and consistent with a discharge permit issued by EPA or an authorized state or tribe.
[footnote]† Publication No. EPA-833B-98-003; see http://water.epa.gov/aboutow/owm/upload/2005_07_14_hwfinal.pdf.
[footnote]‡ Publication No. EPA-833-B-87-100; see http://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=2000SWI9.txt.
[page footer] 27