Any uses or activities locating in aquifer recharge and wellhead protection areas of medium or high significance which involve the use, storage, transport or disposal of significant quantities of chemicals, substances or materials that are toxic, dangerous or hazardous, as those terms are defined by state and federal regulations, shall comply with the following additional standards:

A. Development within aquifer recharge and wellhead protection areas of high significance, as that term is defined in these regulations, shall prepare a materials management plan for review and approval by the town, which shall implement the following measures:

1. Development should be clustered and impervious surfaces limited where possible;

2. Underground storage of chemicals, substances or materials that are toxic, hazardous or dangerous is discouraged;

3. Any chemicals, substances or materials that are toxic, hazardous or dangerous shall be segregated and stored in receptacles or containers that meet state and federal standards;

4. Storage containers shall be located in a designated, secured area that is paved and able to contain leaks and spills, and surrounded by a dike;

5. Secondary containment devices shall be constructed around storage areas that are sufficient to prevent the spread of any spills, and a monitoring system shall be implemented;

6. A written operations plan shall be developed, including procedures for loading/unloading liquids and for training of employees in proper materials handling;

7. An emergency response/spill clean-up plan shall be prepared and employees properly trained in reacting to accidental spills;

8. Any aboveground storage tanks shall be located within a diked area on an impervious surface. The tanks shall include overfill protection systems and positive controls on outlets to prevent uncontrolled discharges;

9. No waste liquids or chemicals of any kind shall be discharged to storm sewers; and

10. All development shall implement best management practices (BMPs) for water quality, as approved by the town, such as biofiltration swales and use of oil-water separators, and BMPs appropriate to the particular use proposed.

B. Development within all aquifer recharge and wellhead protection areas shall implement best management practices (BMPs) for water quality and stormwater as approved by the town. (Ord. 00-387 §1(part), 2000)