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Spoil Spring 2 (WSSPG2) was discovered in June 1999. It is located in <br />the main stream channel above Pond 006 adjacent to the oil well. Its TDS <br />plot indicates an increasing trend, with the peak occurring in 2016 <br />(3620 mg/1). <br />Spoil Spring 3 (WSSPG3) was discovered in September 1999. It is located <br />immediately to the east of Pond 006. Its TDS plot indicates an <br />increasing trend, with the peak occurring in July 2011. <br />Spoil Spring 4 (WSSPG4) was first sampled in 2003. It contains the <br />combined discharges of the backfilled A and B pits. It is sampled at the <br />outlet of the haul road culvert just above Pond 006. Its TDS plot <br />indicates an increasing trend with the peak occurring in 2016 (4100 <br />mg/1). <br />Spoil Spring 5 (WSSPGS) was first sampled in June 2006. It is located <br />above the large culvert that feeds into Pond 016. Its TDS plot indicates <br />a decreasing trend, with the peak occurring in May 2007. <br />Comparison of Surface Water Quality to Water Use Standards. <br />SCC has compiled a list of surface water standards for agricultural uses <br />(Table 10). This list is composed of CDPHE surface water agricultural <br />use standards (CDPHE, Reg.31, November 2009). <br />Table 11 provides a comparison of this year's surface water quality, <br />including springs, to agricultural standards. This Paradox database - <br />generated table does not include the units of concentration (mg/l or <br />ug/1) for each parameter. The units used for each parameter are the same <br />as those listed on the standards table (Table 10) and are the same as <br />those used in the water quality reports. The frequency column on Table <br />11 indicates, in this order: uncensored, that is, the number of <br />exceedances above the Method Detection Limit (MDL) / the number of <br />exceedances between the MDL and the Practical Quantitation Level (PQL) / <br />censored, that is, the number of sample values below the MDL but the MDL <br />was higher than the standard / the total number of samples. Below is a <br />22 <br />