CHAPTER 6 - ANALYSIS OF Li^O^D-USE WITHIN ZOC FOR TOXIC AND HAZARDOUS MAT. 

 Cape Cod Aquifer Management Project Final Report Page 48 



posed to the public-water supply within this ZOC. The results of this 

 inventory, as summarized in Table 6.2, clearly indicates the presence of 

 toxic and hazardous materials and the need for a strong management 

 strategy to protect the groundwater resource. 



Table 6.2. Inventory of Potential Contamination Sources of Toxic and 

 Hazardous Materials Reported within 20C#1 (1) During April 1987. 



Barnstable, Yarmouth, end DEOE Records 



(dates within brackets) for Various 



Categories 



USTS 186 tanks 



(1/87) (38 percent >20 years old) 



SPILLS/LEAKS 21 releases 



(1985-1986 inclusive) 



CONFINED HAZARDCXJS WASTE SITES 6 sites 



(4/15/87 - all petroleun releases) 



TOXIC AND HAZARDOJS KATERIALS STOKERS 

 (5/87) 



TOTAL WASTES MANIFESTED FRW ZOC #1 IN 1986 

 (12/86) 



NOTIFIERS: HAZARDOUS WASTE MANIFEST PROGRAM 



RIGHT-TO-KNOU HSDS FILED AT DEOE 



TIGHT TANKS (INDUSTRIAL) 



GROUNDWATER DISCHARGE PERMITS (INDUSTRIAL) 



(1) Dates in parentheses indicate the most recent data utilized for this 

 study. 



6.4.1 Underground Storage Tanks (USTS) 



The major 

 twofold: (1) 



conclusions of the UST investigation within this ZOC were 

 38 percent of the 186 tanks located were twenty years or 



older; (2) 65 percent of all tanks were constructed of steel. These metal 

 tanks pose a hazard because they are more susceptible to corrosion and 

 subsequent leakage than fiberglass tanks which are favored today. Spatial 

 distribution of the tanks is depicted in Figure 6.2. Refer to Table 6.3 

 for a summary of the tank data. 



