1. DPUG Meeting – May 16, 2013 Jerry Corr Elizabeth Crawley Habitat Management, Inc.

2. Overview Why we undertook this project Need in Market to Improve Cadastral Data but Limited Budgets Help Clients to Improve Land Maps Find a Better, Faster, Cheaper Way to Improve Coordinates. Survey Grade not Required Identify Areas Where Survey is Required

3. Current Situation Increasing Accuracy Requirements Survey Data of Undefined or Insufficient Accuracy 200 Year Old Documents Survey Data Digitized from Topographic Maps Well Locations Calculated from Footages / QQs Lease Boundaries and Wells Aligned to Legacy Grids

4. GCDB Geoprocessing Issue GCDB Mismatches between Big Horn and Johnson counties

5. Project Objectives Is this a Feasible Idea? Rapid Data Acquisition Timely Data Acquisition Improved Metadata Improve Schema Design Photographs Supplemental Information (State Board) Corner Quality Information

6. Business Drivers Need to Improve Data Fit to Imagery Publish Maps with Ownership on “Right Side” of Street. Establish Published Corners / Control Points on the Map. Proper Schema Photographs Create a “Regulatory Grid” Improve Data to Meet Increased Regulatory Spacing Requirements.

7. Phase 1 Littleton: Out of 49 section corners: 7 found, 8 unidentified Discrepancies between 6.5-80ft East of Boulder 39 wells Discrepancies between 0.8-10.5ft One was plugged and reclaimed

8. T 1N R 66W Ft. Lupton

9. Decade# of Records 19708 198017 199021 20002 20101 https://doraimage.state.co.us/L:Hkq3WH1Y0j12N1ZH/

10. Out of 49 section corners: 30 found 7 were calculated from witness monuments Discrepancies between 8.324-103.15ft Average discrepancy = 32.548ft 11 out of 55 were outside the error of 40ft 2 were double marked Findings

12. 40 ft

13. Oil/Gas Wells Ft. Lupton

14. Findings Number of wells used for the study: 49 Discrepancy Range: 0.336-23.216ft Average Discrepancy = 6.564ft 20 wells that have been plugged

15. Questions Elizabeth Crawley, Habitat Management, Inc Email: ecrawley@habitatmanagementinc.comecrawley@habitatmanagementinc.com Robert White, WhiteStar Email: rwhite@whitestar.comrwhite@whitestar.com