Provide superior training support and a quality environment to tenants, military and civilian personnel and their families. Department of Defense related tenant commands number over 90 and include the Chief of Naval Education and Training, Commander Training Air Wing SIX, Naval Aviation Schools Command, Naval Air Technical Training Center (NATTC), Naval Operational Medical Institute, Navy Public Works Center and the Blue Angels located onboard NAS Pensacola. Naval Education and Training Professional Development and Training Center, Saufley Field and Center for Cryptology Corry Station

are tenants not located onboard NAS Pensacola. Support is also provided to 27 nondefense related agencies located on Navy property including the National Park Service, U.S. Coast Guard Station, Barrancas National Cemetery (Veterans Administration), and the National Museum of Naval Aviation.

11. Outstanding Pollution and Safety Deficiencies ($000):

a. Pollution Abatement (*): $ 8710

b. Occupational Safety and Health (OSH) (#): $ 0

DD

Modifications

This project will include improvements/modifications to the existing Wastewater Treatment Plant (WWTP) which includes raising the filtration, disinfection and monitoring capabilities to meet water quality limits for effluent reuse. include modifying the existing chlorine disinfection system to a redundant uninterrupted Ultraviolet (UV) disinfection system, providing additional yard piping and modifying the WWTP's SCADA system. The existing polishing pond at the WWTP will be converted to a lined reject storage pond and a lined reuse storage pond. The existing phenol pond at the WWTP will be converted to a lined reuse storage pond. A new 2 million gallon reuse storage tank will be constructed in a centralized location to store and convey reuse water to land application areas that are not proximate to the WWTP. New pumping stations will be provided to convey wastewater through the modifications and improvements at the WWTP, to the new effluent storage ponds, to the rejected holding pond, to the centrally located reuse storage tank, to the golf course's irrigation source lake and to each of the land application systems: The abandoned 12" effluent reuse transmission main to the golf course will be replaced and extended. Land application of the effluent will be provided through new land application systems and modifying existing irrigation systems to utilize effluent reuse. Effluent reuse land application areas include Magazine Point, the Barrancas National Cemetery, the Naval Air Technical Training Center (NATTC) Complex, and the NAS Pensacola Golf Course. New land

application systems include pump stations, effluent reuse transmission lines, sprinkler distribution piping, sprinkler heads, ground water monitoring wells, metering, monitoring, controls and other electrical work. Modifications to existing land application systems to utilize effluent reuse include pump stations, reuse transmission lines, metering, monitoring, ground water monitoring wells, electrical work, as well as minor modifications to the sprinkler distribution piping, controls, and sprinkler head coverage to provide a complete and usable land application system that conforms to applicable environmental regulations. The three existing groundwater irrigation wells at NATTC will be closed in accordance with applicable environmental regulations.

Sustainable principles will be integrated into the design, development, and construction of the project in accordance with Executive Order 13123 and other laws and Executive Orders.

This project improves the filtration, disinfection and monitoring capabilities of the Wastewater Treatment Plant (WWTP) to meet water quality limits for effluent reuse and provides systems to allow for the land application of the WWTP's effluent in order to eliminate surface water discharge per Consent Order between the Florida Department of Environmental Protection and the Navy Public Works Center.

(Current Mission)

REQUIREMENT:

Adequate facilities are required to enable the Navy to comply with Florida Department of Environment Protection (FDEP) regualtions regarding the land application of reclaimed water from WWTPs.

The Navy entered into a consent agreement with FDEP on May 6, 2003. This consent agreement requires the Navy to come into full compliance with FDEP rules to include implementation of effluent reuse on land, eliminating surface water discharge into the bay by 2007.

The plant

NAS Pensacola currently operates a 2.35 million gallons per day (MGD) WWTP. was first placed in service in the late 1940s. Currently, the plant has an average flow of approximately 1.9 MGD and the effluent is discharged directly to Pensacola Bay. Throughout its history, the WWTP has been modified to accommodate different treatment requirements, as the functions of NAS Pensacola have evolved.

The current method of disinfection employs the use of sodium hypochlorate accompanied by

The existing operation of the treatment plant is plagued by several problems, resulting in the routine violation of the FDEP operating permit. Those problems involve the ability of the plant to produce an effluent that has been chlorinated and then dechlorinated in accordance with the FDEP permit requirements. Examination of system operation revealed that three distinct problems contribute to the improper performance. Those problems are the vapor locking of the chlorination pumps, a built-in delay in the response of the bleach feed system, and an inappropriate configuration in the chlorine contact chamber. In its current state of operation, it is extremely difficult to maintain permitted requirements for chlorination and dechlorination. This has resulted in excursions and subsequent concerns on the part of the Florida Department of Environmental Protection (FDEP). Specifically, the WWTP has consistently exceeded the permitted limits for Total Recoverable Copper, Total Recoverable Zinc, Total Residual Chlorine for disinfection, and Total Residual Chlorine for dechlorination, during the time period from April 2000 to April 2001. The WWTP effluent violations resulted in the Navy receiving a warning letter (Warning Letter # NWDW 17-1382) from FDEP on June 20, 2001. The WWTP continued to exceed effluent limits for Total Recoverable Copper, Total Recoverable Zinc, Total Residual Chlorine for disinfection, and Total Residual Chlorine for dechlorination after the date of the warning letter. Subsequently, the Navy entered into a consent agreement with FDEP on May 6, 2003 in order to avoid a notice of violation and possible WWTP shutdown. This consent agreement requires the Navy to come into full compliance with FDEP rules to include implementation of effluent reuse on land thus eliminating surface water discharge into the bay. As a result of the consent agreement, FDEP has increased the Navy's allowable limits for Total Recoverable Copper. Total Recoverable Zinc, Total Residual Chlorine for disinfection, and Total Residual Chlorine for dechlorination until December 2007. At this time the WWTP reuse project must be implemented. In addition, the current state of operation produces a surface water discharge to the Pensacola Bay that is undesirable.

IMPACT IF NOT PROVIDED :

The existing operational problems will continue to exist. The treatment plant problems will continue to result in routine violation of the FDEP operating permit. If this project is not funded violations of the FDEP operating permit will continue and after year 2007 there will be a $10,000 per day fine incurred by the base.