c) The owner or operator shall sample each monitoring well at least once prior to placing the lagoon in service and as least quarterly thereafter. Water table level elevation measurement shall be taken at each sampling event. The samples shall be collected and analyzed consistent with the methods specified in Section 900.104(a)(1) and (a)(5) of this Part for each of the following:

1. 1) Nitrate-nitrogen;
2. 2) Phosphate-phosporpus;
3. 3) Chloride;
4. 4) Sulfate;
5. 5) Ammonia-nitrogen;
6. 6) Escherichia coli or fecal coliform; and
7. 7) Fecal Streptococcus.

e) Analytical results as determined in subsection (c) of this Section shall be submitted to the Department within 30 days after sample collection and shall include a discussion relative to the significance of the results. Such discussion of significance shall include:

1. 1) A comparison of the results to the initial sampling made prior to the lagoon being placed in service; and
2. 2) A description of any proposed response action necessary to mitigate potential impacts to groundwater.

f) The Department shall review the submittal provided pursuant to subsection (e) of this Section, evaluate the proposed response action, and provide a time frame for the correction of any identified deficiencies. As a result of the evaluation, the Department may approve or modify the monitoring program or response action including, but not limited to, the following:

1. 1) Increase or decrease the monitoring well sampling frequency;
2. 2) Add or delete items from the list of sample analytes; or
3. 3) require changes to the design, construction or operation of the lagoon or changes in the operation of the livestock management facility which shall be implemented by the owner or operator within the time frame established by the Department.