san german ground water contamination

STATE ROAD #122 (ALSO KNOWN AS ROAD 119)

The San German Well field Contamination site (a.k.a. the San German Ground Water Contamination site) is located in the municipality of San German, southwest of Puerto Rico ( 180 05' 04.1" North latitude and 670 02' 07.1" west longitude). San German is located in the southwestern region of the island, south of Mayaguez and Maricao; north of Lajas; east of Hormigueros and Cabo Rojo; and west of Sabana Grande. The San German land area is approximately 140 sq km (54.0 sq mi) and according with the 2000 Census has a population of 37,704 and a population density of 264.2 per sq km (687.1 per sq mi). The drinking water supply for San German relies on local surface and ground water. Nearby manufacturing facilities and various industrial activities in the area have most likely contributed to the contamination of these wells. The main contaminants of concern are tetrachloroethylene (PCE) and trichloroethylene (TCE) which are solvents used in areas such as degreasing, industrial cleaning, and dry cleaning.The site consists of a groundwater plume with no identified source(s) of contamination. The San German Urbano public water supply system (ID No. PR0003323) consists of seven (7) wells and two (2) surface water intakes serving an estimated population of 25,000 people. Three of these wells (i.e., Retiro, Lola Rodriguez de Tio I (hereinafter referred as “Lola I”) and Lola Rodriguez de Tio II (hereinafter referred as “Lola II”) acted as an independent interconnected system with approximately 800 connections and served an estimated population of 2,280 people in 2005. Quarterly ground water samples collected by the system’s operator, the Puerto Rico Aqueduct and Sewer Authority (PRASA), indicated that chlorinated solvents tetrachloroethylene (PCE), and cis-1,2-dichloroethylene (cis-1,2 -DCE) have been detected in all three wells during the period 2001 to 2005. The maximum concentration of PCE and cis-1,2-DCE detected in these wells during this period were 6.4 micrograms per liter and 1.2 micrograms per liter, respectively.

• Grants Chlorinated Solvents (Grants, NM)
• Raymark (Hatboro, PA)
• Pike And Mulberry Streets Pce Plume (Martinsville, IN)
• White Swan Laundry And Cleaner Inc. (Wall Twp, NJ)
• Iceland Coin Laundry Area Gw Plume (Vineland, NJ)

• Orange Valley Regional Ground Water Contamination (West Orange/orange, NJ)
• Eau Claire Municipal Well Field (Eau Claire, WI)
• Ogallala Ground Water Contamination (Ogallala, NE)
• Trans Circuits, Inc. (Lake Park, FL)