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lithium nitrate organic N sulfide nitrogen ammonia iron sulphate total phosphate Dissolved Organic Carbon (DOC) silica Lab analysis work must be performed by a laboratory approved by the authorized officer. 4. If Leakage (brines) from cavities exceeding State of Colorado standards (Table 3-2, Final EIS) for total dissolved solids is detected in the base of the lower aquifer, the operator will be required to (1) perform remedial action such as extracting the brines and disposing of them through surface treatment, evaporation, or deep well injection at approved facilities, and/or (2) contain the brines within the base of the groundwater system and within the boundaries of the sodium leases, as determined by the BLH authorized officer. 5. The designated operator/lessee shall establish surface water monitoring stations for water quantity and quality as required by the authorized officer. These sites shall be located upstream and downstream of the cone of depression of the main channels of Yellow and Piceance Creeks. Data collected at these stations shall include continuous streamflow and precipitation records, monthly discharge and field measurements, water quality analysis for major components conducted on a quarterly basis, and water quality analysis to include these constituent on a semi-annual basis. Semi-Annual Schedule arsenic iron molybdenum barium lithium nickel phosphorous cobalt dissolved organic carbon manganese zinc ammonia organic N nitrogen Data collected shall commence six (6) months prior to start up and shall continue throughout mining operations as directed by the authorized officer. Should recorded water quality data deviate significantly from baseline, sampling frequencies may increase as directed by the authorized officer. 6. The lessee shall compile an inventory of all springs and seeps within the cone of depression and monitor for water quantity and quality. Hater quantity and field measurements of springs shall be monitored monthly for six (6) months prior to and during mining operations. Comprehensive water quality analysis for minor components shall be sampled initially: Hajor and minor components shall be sampled quarterly starting six (6) months prior to mining operations and reduce to an annual schedule during the mining operation (see Honitoring Stipulation 3). Should quantity or quality of any springs or seeps deviate significantly from baseline, sampling intensity and frequencies may increase as directed by the authorized officer. The number and location of surface water monitoring stations and spring sites shall be submitted by the applicant to the authorized officer for approval. 9