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2000 03 15 BAWA Minutes• MINUTES OF THE REGULAR MEETING OF THE BOARD OF DIRECTORS OF THE BAYTOWN AREA WATER AUTHORITY March 15, 2000 The Board of Directors of the Baytown Area Water Authority, Harris County, Texas, met in regular session on Wednesday, March 15, 2000, at 8:00 a.m., at 7425 Thompson Road, in the BAWA Conference Room with the following in attendance: Robert L. Gillette, President Peter R. Buenz, Secretary Knox Beavers, Board Member Dan Mundinger, Vice President Roy L. Fuller, Board Member The meeting opened with a quorum present, and the following business was conducted. Consider Approval of the Minutes for the Regular Meeting Held February 16, 2000 Board Member Buenz moved to adopt the minutes; Board Member Beavers seconded the motion. The vote follows: Ayes: Board Members Beavers, Buenz, and Gillette Nays: None Abstained: Board Members Mundinger and Fuller Consider report on the findings of the Ozone Pilot Plant Study presented by Camp Dresser McKee, Inc. Susan Crawford and Rodney Chapman, of Camp Dresser McKee, presented the report to the Board. Fred Pack summarized the report stating that the process satisfied the regulations in addition to improving water quality, health, and safety. • 20000315-2 • • Minutes of the Regular Session — March 15, 2000 Manager's Report Herb Thomas Commended the staff at BAWA. He said for the sixteen years he had been involved, BAWA had been ahead of the standard. From a state certified (Bac-T?) lab to a Superior water rating to a TOPS award. BAWA was the fourth plant in the state to receive the TOPS award. He stated that he supported the ozone treatment as the best way to produce a higher quality of water. Mr. Thomas read a letter received by BAWA from TNRCC congratulating Tony Brown and staff for meeting the very stringent goals of the Texas Optimization Program. BAWA received certificates from TNRCC for meeting these goals since 1998. Adjourn As there was no further business to be transacted, the meeting was adjourned. P..d.W/1—y Peter Buenz, Secretary • • MINUTES OF THE REGULAR MEETING OF THE BOARD OF DIRECTORS OF THE BAYTOWN AREA WATER AUTHORITY March 15, 2000 The Board of Directors of the Baytown Area Water Authority, Harris County, Texas, met in regular session on Wednesday, March 15, 2000, at 8:00 a.m., at 7425 Thompson Road, in the BAWA Conference Room with the following in attendance: Robert L. Gillette, President Peter R. Buenz, Secretary Knox Beavers, Board Member Dan Mundinger, Vice President Roy L. Fuller, Board Member The meeting opened with a quorum present, and the following business was conducted. Consider Approval of the Minutes for the Regular Meeting Held February 16, 2000 Board Member Buenz moved to adopt the minutes; Board Member Beavers seconded the motion. The vote follows: Ayes: Board Members Beavers, Buenz, and Gillette Nays: None Abstained: Board Members Mundinger and Fuller Consider report on the findings of the Ozone Pilot Plant Study Presented by Camp Dresser & McKee. Inc. Susan Crawford and Rodney Chapman, of Camp Dresser & McKee, Inc. presented the report to the Board. Fred Pack summarized the report stating that the process satisfied the regulations in addition to improving water quality, health, and safety. For copy of the report, see Attachment "A." 000216-2 Minutes of the BAWA Meeting — Febuzry-16, 2000 • • Manager's Report Herb Thomas commended the staff at BAWA. He said for the sixteen years he had been involved, BAWA had been ahead of the standards, from a state certified bacteriological laboratory, to a Superior Water Rating, to a TOPS award. BAWA was the fourth plant in the state to receive the TOPS award. He stated that he supported the ozone treatment as the best way to produce a higher quality of water. Mr. Thomas read a letter received by BAWA from TNRCC congratulating Tony Brown and staff for meeting the very stringent goals of the Texas Optimization Program. BAWA received certificates from TNRCC for meeting these goals since 1998. Adjourn There being no further business to be transacted, the motion was made to adjourn. /A).t-// Peter R. Buenz, Secretary , Attachment '"A" BAYTOWN AREA WATER AUTHORITY SURFACE WATER TREATMENT FACILITY OZONE PILOT STUDY RESULTS AND DISINFECTION IMPROVEMENTS RECOMMENDATION MARCH 15, 2000 CDMCamp Dresser & McKee Inc. Why Are Disinfection Improvements Needed For BAWA? ■ Meet Upcoming Regulations - Long -Term 2 Enhanced Surface Water Treatment Rule • Propose February 2001/Finalize May 2002 • Additional Removal for: - Giardia - Viruses - Cryptosporidium ■ Public Health & Safety - Cryptosporidium Outbreaks - Multiple Barrier Approach ■ Meet BAWA Treatment Goals - Continue to Be Superior Water Provider - Reduce Potential Liability to BAWA Alternatives to Comply with Regulatory Requirements • Membrane Treatment V Physical Removal of Microbial Pathogens Additional Treatment Required for Disinfection and Taste & Odor Control High Capital and O&M Costs • Chlorine Dioxide v Inactivates Microbial Pathogens v Low Capital Cost Less Proven for Cryptosporidium Inactivation Can Create Taste & Odor Problems Maintenance Intensive High O&M Cost Alternatives to Comply with Regulatory Requirements • Ozone ✓ Inactivates Microbial Pathogens v Only Proven Disinfectant for Cryptosporidium Inactivation ✓ Minimizes Disinfection Byproducts ✓ Provides Taste & Odor Control (Eliminates Need for PAC) ✓ Provides Microflocculation Benefits and Enhances Filtered Water Quality ✓ Moderate Capital and O&M Costs More Maintenance Intensive than Existing Disinfection System Why Ozone? ■ Ozone Will Meet Current and Future Regulatory Requirements ■ Majority of Surface Water Plants in the U.S. Are Planning For or Implementing Ozone ■ Many Major Cities in Texas Are Planning For or Have Installed Ozone Ozone Water Treatment Plants in Texas Amar�lo El Paso J Study • Design • Operational Arlington Ft. Worth (3) Dallas (3) flb Shelbyville Baytown Austin (3) jj Houston Ozone Pilot Plant Testing • 5 Months of Pilot Testing Conducted (May - Sep 1999) • Pilot Plant Operated by BAWA Staff • Raw and Settled Water Ozonation Evaluated Pilot Testing Results ■ Raw Water Ozonation is More Economical than Settled Water Ozonation ■ Raw Water Ozone Dose = 5.0 mg/L Will Meet Current Regulatory Requirements ■ Raw Water Ozone Dose = 6.5 mg/L Will Meet Future Regulatory Requirements for Cryptosporidium Inactivation ■ pH Depression with Acid or Chloramine Addition May Be Needed to Control Bromate (Ozonation Byproduct) for Future Regulatory Requirements Implementation of Ozone Process ■ Raw Water Ozonation Upstream of Rapid Mix ■ Phase I Expansion Designed to Accommodate Raw Water Ozonation ■ Ozonation Facilities Included in Phase II Construction ■ Schedule Will Meet Regulatory Requirements N N a) 2 CL L,L 1— (1) () Q co a) It' L V i 0 0 : Q b'_ -FD Ea .= Na 0 in a) "L W ii 'jtif ti a) \ c ^ _ _ -1 1 1 1 c X 2 8 CWA Canal L c * a a re BAWA SWTF with Raw Water Ozonation •• •• •. , . • •. •. •. . •. .• To Distribution System al Finished Water Pumping Projected Costs ■ Existing Plant O&M Cost $0.830 / 1,000 gal ■ Ozone O&M Cost $0.035 / 1,000 gal Total $0.865 / 1,000 gal ■ Additional O&M Savings Can Be Realized Through Elimination of Powder Activated Carbon and Potassium Permanganate Chemical Systems V V Project Schedule pOzone Ozone esign Construction BAWA Schedule Prop3se Final Effective 2/01 5/02 5/05 lir Ir 7LT2ESWTR Stage 2 DBPR 2000 2001 2002 2003 2004 2005 2006 2007 Summary • Regulatory Drivers and Water Quality Goals Require Disinfection Improvements • Ozone is Most Cost -Effective and Feasible Solution • Project Scheduled to be Complete Third Quarter 2003 Questions and Answers •