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Latex Paint Wastes — Municipal Charges and Treatment RODNEY T. WILLIAMS, Senior Sanitary Engineer East Bay Municipal Utility District Oakland, California 94623 INTRODUCTION As a result of new federal regulations, municipal agencies are required to examine the type of users contributory to the sewer system, and the quality and quantity of the discharged wastewaters. Firstly, the Water Pollution Control Act Amendments of 1972 (I) (PL 92-500) require the agency to verify that all major contributing industries, as defined in the pretreatment standards (2), meet the effluent limitations guidelines for "incompatible" pollutants. The definition of a major contributing industry for the purpose of these regulations, has been defined as any industry that discharges an average daily wastewater volume greater than 50,000 gallons. Secondly, municipal treatment agencies receiving construction grants for water pollution control facilities from the federal government will be required to recover from all industries their portion of the grant amount. These amounts will be a charge over and above the ongoing capital and operating expense of the municipal agency. Thirdly, the municipal agency which receives the grant must adopt an equitable system of cost recovery that reflects the cost of treating both the volume and quality parameters of the wastewater. The agency must also adopt and enforce source control regulations on industrial users (3). In the light of these new regulations, Special District No. 1 (S.D. 1) of the East Bay Municipal Utility District (EBMUD) in Oakland, California undertook to investigate the industries within its jurisdiction. This paper will address primarily the latex paint manufacturing industry and will examine the data collected on latex wash water. INVESTIGATION Special District No. 1 was created to intercept, treat, and dispose of waste originating from the seven cities of Oakland, Berkeley, Albany, Piedmont, Alameda, Emeryville and El Cerrito on the east side of San Francisco Bay. Of the 175,000 users in the District, approximately 1,000 are classified in Division D of the Standard Industrial Classification (SIC) Manual (4). Although the staff of the agency were aware that two or three latex paint manufacturers discharged to the municipal system, they were not aware of the large number of smaller industries that would be manufacturing latex paints. The determination of the number and type of industries in all manufacturing categories was made by the business offices of the District. This involved identifying the activities of some 20,000 non-residential users and classifying them into categories based on the 1972 SIC Manual. The final results indicated that instead of there being 2 or 3 paint manufacturers, there were, in fact, 16. Most of these paint manufacturers are small and discharge volumes less than the 50,000 GPD at which volume the municipal agency is required to enforce the pretreatment standards. However, even though the agency would not be required to enforce any federal "pretreatment standards" on these smaller paint industries, the District was under obligation, through the receipt of federal grants, to adopt an equitable system of rates and charges; to enforce any source control requirements 383
Object Description
Purdue Identification Number | ETRIWC197438 |
Title | Latex paint wastes : municipal charges and treatment |
Author | Williams, Rodney T. |
Date of Original | 1974 |
Conference Title | Proceedings of the 29th Industrial Waste Conference |
Conference Front Matter (copy and paste) | http://earchives.lib.purdue.edu/u?/engext,24462 |
Extent of Original | p. 383-393 |
Series | Engineering extension series no. 145 |
Collection Title | Engineering Technical Reports Collection, Purdue University |
Repository | Purdue University Libraries |
Rights Statement | Digital object copyright Purdue University. All rights reserved. |
Language | eng |
Type (DCMI) | text |
Format | JP2 |
Date Digitized | 2009-06-05 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Resolution | 300 ppi |
Color Depth | 8 bit |
Description
Title | page383 |
Collection Title | Engineering Technical Reports Collection, Purdue University |
Repository | Purdue University Libraries |
Rights Statement | Digital object copyright Purdue University. All rights reserved. |
Language | eng |
Type (DCMI) | text |
Format | JP2 |
Capture Device | Fujitsu fi-5650C |
Capture Details | ScandAll 21 |
Transcript | Latex Paint Wastes — Municipal Charges and Treatment RODNEY T. WILLIAMS, Senior Sanitary Engineer East Bay Municipal Utility District Oakland, California 94623 INTRODUCTION As a result of new federal regulations, municipal agencies are required to examine the type of users contributory to the sewer system, and the quality and quantity of the discharged wastewaters. Firstly, the Water Pollution Control Act Amendments of 1972 (I) (PL 92-500) require the agency to verify that all major contributing industries, as defined in the pretreatment standards (2), meet the effluent limitations guidelines for "incompatible" pollutants. The definition of a major contributing industry for the purpose of these regulations, has been defined as any industry that discharges an average daily wastewater volume greater than 50,000 gallons. Secondly, municipal treatment agencies receiving construction grants for water pollution control facilities from the federal government will be required to recover from all industries their portion of the grant amount. These amounts will be a charge over and above the ongoing capital and operating expense of the municipal agency. Thirdly, the municipal agency which receives the grant must adopt an equitable system of cost recovery that reflects the cost of treating both the volume and quality parameters of the wastewater. The agency must also adopt and enforce source control regulations on industrial users (3). In the light of these new regulations, Special District No. 1 (S.D. 1) of the East Bay Municipal Utility District (EBMUD) in Oakland, California undertook to investigate the industries within its jurisdiction. This paper will address primarily the latex paint manufacturing industry and will examine the data collected on latex wash water. INVESTIGATION Special District No. 1 was created to intercept, treat, and dispose of waste originating from the seven cities of Oakland, Berkeley, Albany, Piedmont, Alameda, Emeryville and El Cerrito on the east side of San Francisco Bay. Of the 175,000 users in the District, approximately 1,000 are classified in Division D of the Standard Industrial Classification (SIC) Manual (4). Although the staff of the agency were aware that two or three latex paint manufacturers discharged to the municipal system, they were not aware of the large number of smaller industries that would be manufacturing latex paints. The determination of the number and type of industries in all manufacturing categories was made by the business offices of the District. This involved identifying the activities of some 20,000 non-residential users and classifying them into categories based on the 1972 SIC Manual. The final results indicated that instead of there being 2 or 3 paint manufacturers, there were, in fact, 16. Most of these paint manufacturers are small and discharge volumes less than the 50,000 GPD at which volume the municipal agency is required to enforce the pretreatment standards. However, even though the agency would not be required to enforce any federal "pretreatment standards" on these smaller paint industries, the District was under obligation, through the receipt of federal grants, to adopt an equitable system of rates and charges; to enforce any source control requirements 383 |
Resolution | 300 ppi |
Color Depth | 8 bit |
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