Hydroblasting in San Francisco
Attention!
When you hydroblast building surfaces in San Francisco, the wastewater may contain lead-based paint chips and dust. You must prevent the contaminated wastewater from going into the sewer. You may want to filter the wastewater at the job site using three layers of cheesecloth before discharging the filtered water to the sewer.
The California Environmental Protection Agency (Cal-EPA) prohibits filtering potentially hazardous waste. In order for you to filter the wastewater from hydroblasting, you will need to complete the attached cover letter plus the 12-page form and send them to Cal-EPA to obtain an exemption from the rule.
Complete only the areas of the form where there is an arrow or a circle. You do not need to be concerned with the “X” portions of the form, which are not applicable to the hydroblasting situation.
If you have further questions, please call the Children’s Environmental Health Promotion Program of the San Francisco Department of Public Health at (415) 554-8930 ext. 14 or (415) 252-3957.
SAMPLE COVER LETTER
______(Date)
Matthew Peterson
California Environmental Protection Agency
Department of Toxic Substance Control
400 P Street, 4th Fl
Sacramento, CA 95812
Dear Mr. Peterson:
Enclosed are the forms for conditional exemption for a Site-Specific Notification and a Unit-Specific Notification.
The ______(Company Name)
is attempting to comply with an ordinance in San Francisco that requires contractors to prevent the migration of lead paint contaminants. To prepare building surfaces for painting, washing of the surfaces may be necessary. This process produces wastewater that may contain lead paint chips and dust. It is the intent of this company to filter the wastewater at the job site using three layers of cheese cloth and discharge the filtered water to the sewer. The filtered solids will be sent either tot eh Very Small Quantity Generator Program in San Francisco, left with the property owner for proper disposal, or removed by a licensed hazardous waste transporter.
Thank you for your prompt response to this notification. If you have further questions about my paper work, please contact me at ( ) ______. You can send me your authorization of my notifications by fax at ( ) ______or mail it to:
______
______
______
Sincerely,