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.� 1,/ By the time everything was shut down, approximately 100 gallons of waste, (drag out rinse water mixed with a small amount of sulfuric acid) had flowed into the parking lot. The security department proceeded immediately to the site of the spill, where they used pH paper to determine that the spill had a pH of between 4 and 5 . The director of manufacturing responded to the area of the spill. He made the decision to dilute the spill by using water, which caused the liquid to run into a storm drain. After several attempts to ..reach me at home, I was contacted by the security department, at approximately 8: 15 pm. After receiving an account of what had happened; I instructed security to call the Manteca Fire Department and report the spill. Captain Bill Sevens from the Manteca Fire -Department responded to Indy at 9 : 15 pm. Captain Sevens contacted the following agencies . San Joaquin County Health Services San Joaquin County Office of Emergency Services South San Joaquin Irrigation District Manteca Public Works Department Manteca Police Department I arrived at Indy at approximately 10 :00 pm. Captain Sevens, ask me to estimate the amount of acid and metals that were released in the spill. I ask the security officer on duty if anyone from the Tin Plate area had been contacted to verify if any acid baths had been changed that afternoon. The officer stated that no one had talked to tin plate, I ask security to send for someone from the tin plating area. A swing shift employee from our tin plating area stated that no baths had been dumped on swing shift that day. Having this information, I made the statement to Captain Sevens that most of the release had to be rinse water and the acid and metal content would be very low. Captain Sevens ask if the acid content was less than 5%. I stated that in my best judgement, it would have to be well below that amount. I stated that due to no baths being dumped, there could only be residual sulfuric acid and blowdown from our fume scrubbers in the collection tank. The rest of the liquid would have to be D. I . Water. The Fire Department called the South San Joaquin Irrigation District and passed on this information. Having been given the information of the acid and metal content of the discharge, the Irrigation District made the decision to release the contaminated water to the irrigation system, where it would be mixed with large quantities of other irrigation water. The plating areas remained shut down until the electrical control panel was repaired at approximately 2 : 00 am.