C150274 Financials 2009

• Contract/PO #: C150274
• Contractor Name: Yuma County
• Contract Type: Loan
• Loan Projects - Doc Type: Report

MCMAHAN AND ASSOCIATES, L. L.C.
Certified Public Accountants and Consultants
WEB SITE: WWW.MCMAHANCPA.COM
SUITE 222/AVON CENTER TELEPHONE: [phone]
100 WEST BEAVER CREEK BLVD. FACSIMILE: (970) 845-085 I
P.O. Box 5850 AvoN, CO 8 1 620 E-MAIL: MCMAHAN @MCMAHANCPA.COM
Board of County Commissioners
Yuma County, Colorado
Wray,Colorado 80758-1850
We have audited the financial statements of Yuma County, Colorado(the"County")for the year ended
December 31, 2009. Professional standards require that we provide you with the following information
related to our audit.
Qualitative Aspects of Accounting Policies
Management is responsible for the selection and use of appropriate accounting policies. The significant
accounting policies used by the County are described in the Notes to the Financial Statements. No new
accounting policies were adopted and the application of existing policies was not changed during the
year. We noted no transactions entered into by the County during the year for which there is a lack of
authoritative guidance or consensus. There are no significant transactions that have been recognized in
the financial statements in a different period than when the transaction occurred.
Accounting estimates are an integral part of the financial statements prepared by management and are
based on management's knowledge and experience about past and current events and assumptions
about future events. Certain accounting estimates are particularly sensitive because of their significance
to the financial statements and because of the possibility that future events affecting them may differ
significantly from those expected. The most sensitive estimates affecting the financial statements were:
• Estimated useful lives for depreciation of fixed assets: Management's estimate is based on
industry practice and experience. We evaluated the key factors and assumptions used to
develop the useful lives used in determining depreciation and found that it is reasonable in
relation to the financial statements taken as a whole.
• Estimated liability for landfill closure and post-closure costs: Management's estimate is
based on a study prepared by an outside consulting firm. We evaluated this information and
found that it is reasonable in relation to the financial statements taken as a whole.
Difficulties Encountered in Performing the Audit
We encountered no difficulties in dealing with management in performing and completing our audit.
Corrected and Uncorrected Misstatements
Professional standards require us to accumulate all known and likely misstatements identified
during the audit, other than those that are trivial, and communicate them to the appropriate level
of management. There were no material uncorrected misstatements.
Performing services for local governments throughout Colorado
D.Jerry McMahan,C.P.A. Daniel R.Cudahy,C.P.A.
Paul J.Backes, C.P.A. Michael N.Jenkins,C.A.,C.P.A.
Members:American.Institute of Certified Public Accountants/Colorado Society of Certified Public Accountants