Publicly owned treatment works POTW

You may complete Part II for only the off-site locations that apply to the specific chemical cited in a particular report you can list all off-site locations that apply to all chemicals being reported and include a photostatic copy of Part II with each individual report. List only publicly owned treatment works (POTWs) and off-site treatment or disposal facilities. 

Acid used in the formation process is removed from the batteries and reused. The batteries are washed, fresh acid is added, and the batteries are tested, re-washed, and inspected before being shipped to an on-site warehouse. The intermediate and final washes generate process wastewater, as do the battery repair and housekeeping (floor washing) operations. This wastewater Is pretreated on-site and then piped to the local publicly owned treatment works (POTW). 

Guide to Discharging CERCLA Aqueous Wastes to Publicly Owned Treatment Works (POTWs), March 1991 NTIS PB91-219364 Handbook for Monitoring Industrial Wastewater, August 1973 625/6-73-(X)2 ERIC W318 NTIS PB-259146. 

DISCHARGES TO PUBLICLY OWNED TREATMENT WORKS (POTW )... 

Total amount of chemical transferred off-site, including to publicly owned treatment works (POTW). 

Any existing source of the aluminum basis material subcategory that introduces pollutants into a publicly owned treatment works (POTW) must achieve the pretreatment standards listed in Table 8.31A. In cases where POTW find it necessary to impose mass effluent pretreatment standards, the equivalent mass pretreatment standards are provided in Table 8.31B.7... 

Under indirect discharges, the wastewater is first sent to a publicly owned treatment works (POTW), and then, after treatment by the POTW, discharged pursuant to an NPDES permit. Under these requirements, the generator of the wastes cannot simply transfer the waste materials to a POTW. Rather, the wastes must satisfy applicable treatment and toxic control requirements known as pretreatment standards, where they exist. POTWs that receive hazardous wastes for treatment are also subject to certain RCRA permit-by-rule requirements, and remain subject to RCRA corrective action. 

According to the Toxics Release Inventory, in 1996, atotal of 16,938,957 pounds (7,683,382 kg) of lead was released to the environment from 1,494 large processing facilities (TRI96 1998). Table 5-1 lists amounts released from these facilities. In addition, an estimated 47,886 pounds (21,721 kg) were released by manufacturing and processing facilities to publicly owned treatment works (POTWs), and an estimated 350,783,734 pounds (159,112,825 kg) were transferred offsite (TRI96 1998). The TRI data should be used with caution because only certain types of facilities are required to report. This is not an exhaustive list. 

Because acrylonitrile is listed as a hazardous substance, disposal of waste acrylonitrile is controlled by number of federal regulations (see Chapter 7). Rotary kiln, fluidized bed and liquid injection incineration are acceptable methods of acrylonitrile disposal (HSDB 1988). Underground injection is another disposal method. The most recent quantitative information on amount of acrylonitrile disposed in waste sites is for 1987. Emissions were 0.9 metric tons in surface water, 152 metric tons disposed through Publicly Owned Treatment Works (POTW), 92 metric tons disposed of on land 1,912 metric tons by underground injection (TR11988). Because acrylonitrile is relatively volatile and is also readily soluble in water, release to the environment from waste sites is of concern. 

The washed solvent is collected in drums for disposal. The aqueous stream, after analysis, can be sent directly to the publicly owned treatment works (POTW). Limits have not yet been set for dumping versus waste disposal in drums. If the solvent being used is a regulated substance (such as toluene), drum disposal of the HLO may be the only acceptable way. 

According to the TRI, approximately 92,755 pounds of hexachloroethane were transferred to landfills and/or treatment/disposal facilities by industrial manufacturers or processors in 1993 (see Section 5.2) (TRI93 1995). No hexachloroethane was discharged to publicly owned treatment works (POTW), but 1,081 pounds were disposed of by underground injection. These data do not include disposal of hexachloroethane-containing wastes by the militaiy. 

There are numerous sources that release cyanide into water. Cyanide is released into water from both point and nonpoint sources. The major point sources of cyanide released to water are discharges from publicly owned treatment works (POTWs), iron and steel production, and organic chemical industries (Fiksel et al. 1981). Estimates based on data from the mid-to-late 1970s indicate that these sources account for 89% of the estimated 31 million pounds of total cyanide discharged annually to surface... 

The AEA effluent management system proposal is to send dilute nitric acid that is not used as process water makeup as a waste stream to a publicly owned treatment works (POTW) under a pretreatment exemption. An analysis of the characteristics of effluent from the Demo II tests shows that it could be disposed of in a POTW however, it is not known whether such a facility exists. 

According to the TRI, about 8.5 million pounds (3.8 million kg) of phenol were transferred to landfills and/or other treatment facilities, and about 3.3 million pounds (1.5 million kg) were sent to publicly-owned treatment works (POTWs) in 1996 (see Table 5-1) (TRI96 1998). 

Wastewater is treated in on-site wastewater treatment facilities and then discharged to publicly owned treatment works (POTWs) or discharged to surface waters under National Pollution Discharge Elimination System (NPDES) permits. Petroleum refineries typically utilize primary and secondary wastewater treatment. 

No data were located regarding historic disposal trends or the amounts of 1,4-dichlorobenzene disposed of by different means. According to the most recent Toxics Release Inventory (TRI96 1998), a total of 762,085 pounds of 1,4-dichlorobenzene were released to the environment. Of this total, 521,143 pounds of 1,4-dichlorobenzene wastes were transferred off-site (presumably for incineration), 79 pounds were sent to publicly owned treatment works (POTWs), 2,000 pounds were released via underground injection,... 

Less than 1% of environmental releases of 1,4-dichlorobenzene are to surface water (EPA 1981a). The compound s level of water solubility is also considered low (49-79 mg/L [ppm] at 22-25 °C) (Verschueren 1983). 1,4-Dichlorobenzene has been identified in industrial and municipal waste waters from several sources, at concentrations ranging from less than 3 ppb to more than 900 ppb (Oliver and Nichol 1982a Perry et al. 1979 Young and Heesen 1978 Young et al. 1980 1981). In 1988, environmental releases to surface water and publicly owned treatment works (POTWs) reported by industry were 6,153 pounds... 

Section 306(b) of the CWA requires USEPA to promulgate pretreatment standards applicable to the introduction of wastes from industry and other nondomestic sources into publicly owned treatment works (POTWs). USEPA issued the General Pretreatment Regulations on June 26, 1978, and amended these regulations several times in the following years (40 CFR pt. 403). 

Publically Owned Treatment Works (POTW) Utilizing Chlorine Dioxide for Water Treatment in... 

Figure 6-2 illustrates the levels of chlorite ion in drinking water sampled from the distribution system versus the percentage of publically owned treatment works (POTW) facilities in the United States that reported as part of the ICR in 1998. Approximately 16% of this group had levels of chlorite ion over the MCL of 1 mg/L. 

The permitting and regulatory costs given assume that the treatment is part of a Resource Conservation and Recovery Act (RCRA) remedial action and that the effluent is discharged to a publicly owned treatment works (POTW). 

EPA has also developed pretreatment standards for industrial facilities that discharge directly to publicly owned treatment works (POTWs). The three types of pollutants of principal concern are pollutants that interfere with the operation of the POTW, pollutants that contaminate the sludges produced in the POTW, and pollutants that pass through the POTW or that are otherwise incompatible. One particular concern is volatile contaminants that can be stripped into the air during conventional wastewater treatment and become air pollution problems. These pretreatment standards are included in the effluent guidelines for the different industries. 

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