Attachment 2:

Evaluation of Future Water Uses (Results of the 25-Year Water Use Planning Review)

All plans, records and other relevant information shall be obtained from the following sources, without limitation. Please check the following boxes to confirm that the following sources were evaluated.

The New Jersey Water Supply Master Plan;

Department of Environmental Protection, Bureau of Water Allocation;

Municipal master plans;

Zoning plans;

a. Changes within the 25-year water use planning horizon (as appropriate):

Two public water systems are being proposed to serve two individual housing developments. The closest withdrawal point will be located approximately 1,000 feet downgradient of the existing CEA. The proposed wells will be screened from 80 to 150 feet below grade. The CEA is defined to a vertical depth of 100 feet below grade.

b. Determination of actual or proposed changes in the ground water use above have influenced or may influence the protectiveness of the remedial action that includes the ground water CEA (as appropriate).

The estimated time frame to construct the development and install the potable wells is approximately 20 years from the date of this correspondence (September 25, 2023). The estimated termination date for the CEA is August 5, 2005. The on-site monitoring wells associated with the CEA will be sampled 6 months prior to the CEA expiration date to determine compliance with the Ground Water Quality Standards (GWQS). In the event constituents are detected above the GWQS at that time a contingency plan will be provided to ensure protectiveness.

Attachment 3:

Revised CEA

Attach the appropriate calculations for a revised CEA in this section, as necessary.

Attachment 4:

Well Search

Attach results of computer well search (contact the Bureau of Water Allocation) for all wells within one mile up-gradient, side-gradient and down-gradient of the ground water CEA. Identify all wells, other than ground water monitoring wells, within this one-mile radius since the Department established the ground water CEA or the last completed biennial certification, whichever is more recent.

Example: No potable wells were identified within a one-mile downgradient/sidegradient direction of the CEA. One irrigation well is located approximately 1,000-feet upgradient (southeast) of the site CEA. Well information including well owner, screening interval, pumping rate, date in which well was installed and well search map identifying site and irrigation well is provided in attachment. Water elevations were resurveyed in existing monitoring wells associated with this CEA and ground water flow direction was reconfirmed. Current flow direction (northwest) is consistent with previous flow directions. In addition, ground water samples were collected from the site monitoring wells. The concentration gradient is consistent with historical trends and no contaminant concentrations are present in the site upgradient monitoring well. Based upon this information the existing remedial action remains protective of the public health and safety and the environment.

Attachment 5:

Maintenance Records for Monitoring Wells

Please check the appropriate box below.

______ No monitoring wells, associated with this site, are present.
___X__ Monitoring wells and records, associated with this site, are enclosed.

Provide the following information for each monitoring well including the frequency and dates of inspections:

• The identification, integrity and location of the well (on a scaled site map;
• The presence of a functioning pad lock; and
• The presence of any additional security measures such as a fence or patrolling of the site.

Example: On-site monitoring wells (MW-1 through MW-4) are identified on the attached, scaled site plan. The site is inspected on a quarterly basis (March, June, September and December) on the first Monday of the corresponding month. During each visit the surrounding six-foot chain link fence is inspected for security including breeches and or damage to the fence or the one main gate entrance (see site plan). In addition, all monitoring wells are inspected for integrity. During inspection, the flush mount monitoring wells were inspected. The pad lock on MW-1 was rusted shut. This pad lock was replaced with a new functioning pad lock. The concrete pad surrounding the steel plate (also known as the “Road Box”) protecting MW-3 was crushed apparently due to on-site construction activities. The interior 4” well casing with locking cap were not damaged during inspection. The Road Box was replaced and two bollards were installed to prevent further damage in this high traffic area. Remaining monitoring wells MW-2 and MW-4 were also inspected and determined to be sound.

Attachment 6:

Well Abandonment Forms

______ No Well Abandonment Forms are required at this time.
___X__ Well Abandonment Forms are enclosed.

Copies of the well abandonment form(s) shall be included within this attachment.

Attachment 7:

Results of Land Use Disturbance

Example: A swale was installed the downgradient leading edge of the CEA. Ground water elevation is located approximately 4 feet below grade however; it can fluctuate as high as two feet below grade due to seasonal influences. The detention basin has been excavated to approximately 3 feet below the original surface grade. A ground water sample has been collected from the most downgradient monitoring well. The results and associated QA/QC package is included within this attachment. No contamination has been identified above the Ground Water Quality Standards or the Surface Water Quality Standards. In addition, the existing fate and transport model (CEA model) for the ground water contaminant plume ensures that the remedial action remains protective of the public health and safety and the environment.

Attachment 8:

Results of Ground Water Analysis

Example: Since the establishment of the CEA all contaminant concentrations in site monitoring wells have continued to exhibit a decreasing trend. Contaminant concentrations were not detected in Sentinel well MW-4. While the wells have not achieved concentrations at or below the Ground Water Quality Standards the reduction in contaminant concentrations is consistent with the existing CEA model. The results and associated QA/QC package are included within this attachment. Plans are proposed to collect at least two rounds of ground water samples such that the time between sampling events shall account for seasonal fluctuations in the ground water table and the number of ground water samples. This will be conducted within 120 calendar days after the projected expiration of the ground water CEA pursuant to 7:26E-8.6(a) 7.

Attachment 9:

Name and Address Copy List