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GENERAL31467
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Last modified
8/24/2016 7:54:36 PM
Creation date
11/23/2007 7:01:04 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981031
IBM Index Class Name
General Documents
Doc Date
11/14/2005
Doc Name
Proposed Decision & Findings of Compliance for SL1
From
Termination of Jurisdiction
Permit Index Doc Type
Findings
Media Type
D
Archive
No
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evaluate revegetation establishment for the final release of liability. Statistical <br />evaluations were calculated as necessary to evaluate the reclaimed area's equivalency <br />to the applicable standazds. <br />Completion of Minimum Liability Period <br />The site was seeded 12 yeazs ago (in 1992) and only minor interseeding occurred <br />during the next two years; therefore, the 10-year liability period has expired. <br />2002 Vegetation Sampling <br />The first yeaz of vegetative sampling was conducted in the summer of 2002. The <br />eight months preceding the 2002 growing season were the driest on record since <br />record keeping began in 1895. Additionally, according to the National Weather <br />Service, the drought was accompanied by excessive heat in Colorado another <br />negative impact to the vegetation growth for that yeaz. The severe drought coupled <br />with the extreme high temperatures negatively impacted the vegetative growth, vigor, <br />and health as demonstrated by the data collected. <br />(http://www.ncdc.noaa. eov/oa/climate/research/2002/juVst005dv00pcn200207.html). <br />In 2002, the reclaimed area, at 8.93 percent, was below the vegetative cover standard <br />set at 23 percent. The production value of 293.21 ]bs/acre (32.84 g/m2) measured at <br />this site was more than adequate to meet the standard of 2371bs/acre (or 26.6 g/m2). <br />The stem density at the New Pryor Strip Mine site was 324 stems/acre (0.08 <br />stems/mz), although the site has no requirement to establish shrubs. <br />The reclaimed area has a mixture of native perennial graminoid, forb and shrub <br />species. Although, the cover values were low in 2002, it is evident, that the <br />components for a diverse vegetative community capable of self-regeneration aze <br />present. <br />2003 Vegetation Sampling <br />In contrast to 2002, the second year of sampling in 2003 resulted in successful <br />revegetation and probably reflected the increased moisture. <br />For 2003, the reclaimed azea exceeded the cover and production standazds by <br />comfortable margins. Measured cover was 30.93% compared to the minimum <br />acceptable cover standard of 23%. Production was measured at 808 Ibs/acre, <br />exceeding the minimum standard of 2931bs/acre. The reclaimed community exhibits <br />plant species representing diverse life-forms and includes both warm season and cool <br />season plant species. Evidence suggests that the reclaimed azea is being used for <br />domestic grazing which demonstrates effective post-mining land-use. Even more <br />8 <br />
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