SUMMARY COMMENTS ON REPORT BY DR. G. THYNE Anthony W. Gorody Ph. D., P.G. President Universal Geoscience Consulting, Inc.

ASSERTIONS COVERED Dissolved methane in groundwater is increasing Biogenic methane is actually thermogenic Williams Fork is the only source of thermogenic gas Chloride concentrations are increasing Chloride is derived from produced waters

DUPLICATE ANALYSES NOT CONSIDERED

Dissolved methane concentration in duplicate SAMPLING VARIATION* Dissolved methane concentration in duplicate samples varies by 9% plus or minus 90 ug/L) *Collected from water wells only * ug/L = micrograms per liter or .001 milligrams per liter PAGE 5 FIGURE 1

GAS COMPOSITION NOT CONSIDERED

SOPHISTICATED FORENSIC ANALYSIS OF GASES FINGERPRINTING GAS SOURCES COMPOSITION NON HYDROCARBONS: N2, Ar, O2, CO2, H2S, He, H2 GAS RATIOS Relative abundance of non-hydrocarbons to hydrocarbons Ratios relative to Argon HYDROCARBONS: C1, C2, C3, nC4, iC4, nC5, iC5 Relative abundance STABLE ISOTOPES CARBON DEUTERIUM

DID YOU KNOW? BULK OF EARTH’S ORGANIC CARBON LOCKED UP AS BIOGENIC METHANE? 20% OF THE WORLD’S COMMERCIAL GAS RESERVES ARE COMPOSED OF BIOGENIC METHANE

METHANE SOURCES ARE IDENTIFIED ON BASIS OF DIFFERING ATOMIC WEIGHT BIOGENIC THERMOGENIC

BIOGENIC GAS SIGNATURE Light Methane Ethane

MAMM CREEK FIELD PRODUCED GAS COMPOSITION AVAILABLE BUT NOT CONSIDERED Average CO2 = 0.84% (max 3.5%) Average CH4/CO2 = 115 (min 34) Average C1/C2 = 22 (max 31) Average C2/C3 = 2.5 (max 3.1) 10 Table 1

DID YOU KNOW? THERMOGENIC METHANE IS ASSOCIATED WITH OTHER GASES Butane Propane Ethane Heavy Methane Light Biogenic Methane Pentane Carbon Dioxide

OTHER SOURCES OF THERMOGENIC HYDROCARBONS NOT CONSIDERED

DID YOU KNOW? COMMERCIAL WELLS PRODUCE NATURAL GAS FROM THE WASATCH FM IN RULISON FIGURE 8 PAGE 18 13

SAND GAS FIGURE 5 SHALLOW GAS WIRELINE LOG G33 PAD WITH THERMOGENIC GAS COMPOSITION TABLE PAGE 15

MANY MAMM CREEK FIELD BRADENHEAD GASES DIFFER FROM UNDERLYING WILLIAMS FORK PAGE 17 FIGURE 7

CHLORIDE DATA NOT CONSIDERED

CHLORIDE CONCENTRATION IN WELLS THROUGH TIME IS VARIABLE DID YOU KNOW? CHLORIDE CONCENTRATION IN WELLS THROUGH TIME IS VARIABLE This diagram excludes a few sites with more than 400 mg/L chloride to make points more visible. The explanation that best accounts for large observed differences in chloride concentration is that most domestic water wells tap stacked aquifers. The relative contribution of bicarbonate and chloride type waters in any given water well varies randomly and does not vary systematically with time. Therefore high chloride values observed at any given site do not necessarily imply any kind of impact. Line of no difference Upper concentration limit Cut off for illustration PAGE 23 FIGURE 9

Of 5 wells with the longest sampling history, four show an average decrease with time FIGURE 10 PAGE 24

CHLORIDE SOURCES NOT CONSIDERED

DID YOU KNOW? THERE ARE CHLORIDE SALTS IN THE GREEN RIVER FORMATION

FISH TRAPPED IN EVAPORATING POOLS OF WATER GREEN RIVER FORMATION http://www.blackhawkfossils.com/Fish/fde101.jpg

THE DIVIDE CREEK RECHARGE ZONE DRAINS FROM THE OVERLYING GREEN RIVER OUTCROP WHICH CONTAINS CHLORIDE SALTS URS STUDY AREA Green River Formation Wasatch Battlement Mesa Garfield Mesa Lava flow basalts PAGE 26 Adapted from 1:250,000 CO geologic map

GEOTHERMAL FLUIDS BELOW GROUND ADAPTED FROM Idaho National Engineering and Environmental Laboratory 2003 MAP BASALTS ERODED FIGURE 12 PAGE 27

WATER ISOTOPE DATA NOT CONSIDERED WATER WELLS SURFACE WATER MONITOR WELLS (DIVIDE CREEK) Modern global precipitation line ALL WATER SAMPLES FALL ON MODERN METEORIC WATER LINE PAGE 29 FIGURE 13

SOLUTE FOR SODIUM CHLORIDE IS MODERN RAIN WATER Sea Water WELLS WITH UP TO 500 mg/L Cl are derived from rain dissolving salts PAGE 30 FIGURE 14

CONCLUSIONS No one can reproduce results Available data not honored Multiple hypotheses not considered or discussed