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placed on top of the pack. Between one and three individual piezometers were installed in each drillhole depending upon the depth and stability of the hole. The hole was backfilled with cuttings and grout to the surface and a 6 inch steel casing was installed at the surface over the PVC pipes for protection. Between one and three holes were drilled for each piezometer nest. Piezometers installed in old underground mine workings could not be sand packed, but were sealed above the workings with a mud basket and bentonite pellets. During monthly visits to each station, water level measurements were made using aSoil-Test Indicating Depth Meter with a conductance bridge. Levels were recorded from the top of the well casing and reported as such. Water quality samples were collected during the quarterly field trips. Samples were obtained with a hand bailer, grabbing at least three casings of water prior to sample collection. Measurements for temperature, pH and conductivity • were made in the field utilizing an Orion Research Model 399A portable pH meter and Hach Model 16300 portable conductivity meter. All other parameters were collected in precharged bottles and submitted to Bookcliffs Laboratory in Steamboat Springs for analyses. Methods of analysis were consistent with EPA standard testing procedures. Results Results of the monitoring period are contained in Tables 4 and 5 with water levels and major parameters summarized in Table 3. The permit area is located on the eastern rim of the Raton Basin. General movement of water in the permit area is eastward. Because of geologic conditions, the permit area hes been divided into three hydrogeologic sectors as shown on Figure 1. These hydrogeologic sectors are divided by major geologic features which influence the local movement of ground water. Sector 1 is bounded by a dike along the southern property boundary and Maitland Arroyo on the north. • -5-