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Cached Cow - How AGOL/Collecotor Saved Resource...

Cached Cow - How AGOL/Collecotor Saved Resources to Protect the Aquifer

Sarah Eason, Aquifer Protection - Edwards Aquifer Authority

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  1. Cached Cow-How AGOL/Collector Saved Resources to Protect the Aquifer Sarah

    Eason Aquifer Protection Edwards Aquifer Authority Texas GIS Forum 2018
  2. In the year 2000, the Edwards Aquifer Authority (EAA) began

    buying environmentally sensitive land. In 2008 we partnered with the City of San Antonio (CoSA) to aid in the Edwards Aquifer Protection Program and was renewed in 2016. Through a one-eighth cent sales tax over the past 17 years, CoSA has acquired more than 150,000 acres of conservation easements and protected lands in order to protect water quantity and water quality of the Edwards Aquifer. The EAA provides geologic assessments and annual monitoring for all the prospective and acquired lands. This map represents the distribution and size of the EAA and CoSA protected lands.
  3. Monitoring the land ➢ EAA inspects annually for all Conservation

    Easements ➢ Inspection criteria are based on CE Monitoring Plans developed for each individual property. ➢ Inspection Reports are generated to document compliance with the CE Covenants: ➢ Today, what is the state of the lands which were agreed upon to be conserved, used with restrictions or remain undeveloped? Owners of the properties enter into a Conservation Easement (CE) to “protect indefinitely the quantity and quality of the water percolating into the Edwards Aquifer.”
  4. New Methods: Collector for ArcGIS! ➢It’s a map! ➢It’s a

    data collector! ➢It’s a navigator! ➢It’s a field book! ➢It’s a compass! ➢It’s a camera! ➢It works offline! ➢It syncs with the office in real time!
  5. New Methods Instead of data and maps spread out over

    five people’s PC’s, two network locations and Sharepoint, we now have a dedicated geodatabase structure for publishing and maintaining the inspection data and map products.
  6. Recharge and karst landscape ➢ Karst topography describes a landscape

    containing soluble rocks typified by the presence of caves, sinkholes, and other natural dissolution features produced by the interaction of water, minerals within the rock, and many other natural processes.
  7. Recharge and karst landscape ➢ Precipitation and stream flow then

    percolate through the highly porous and permeable Edwards limestone, exposed at the ground surface in the recharge zone.
  8. Recharge and karst landscape ➢ Because of down faulting the

    Edwards Aquifer drops deep below land surface in the artesian zone. The rocks above the Edwards are relatively less permeable, creating a confined condition that adds pressure to the aquifer. Where pressure is sufficient, and natural faults or fractures are present, water will be forced to the surface in the form of springs.
  9. Why keep these properties natural? These details were part of

    the argument for bringing one particular property into the program (and many other properties exhibit similar characteristics): ➢Documented gain/loss studies for the Frio River, downstream and west, confirm surface flows are lost to the subsurface in this area;
  10. Why keep these properties natural? ➢Due to the proximity of

    this property to contiguous Devils River Formation (Kdvr), stormwater runoff will flow across the contiguous portions of Kdvr and have a high potential to recharge the Edwards Aquifer farther downstream;
  11. Why keep these properties natural? ➢Complete loss of surface flow

    was observed during the 2013 site visit ~8 stream miles south, where contiguous Kdvr is exposed in the creek bed;
  12. Why keep these properties natural? ➢The current conceptual understanding of

    the Edwards Aquifer system indicates that recharge occurring in the property area has high probability of flowing to the Aquifer.
  13. The power of water ➢ Disappearing streams: ➢ hidden entrances

    and ➢ subject of high-profile research ➢ Caves and sinkholes: direct conduits with extreme recharge- and pollution- potential ➢ Seeps and springs: pressurized exits and reliable condition indicators
  14. Disappearing Streams: underground water flow “MP 8 overlooks two waterfalls

    on the northwest potion of the site. Given the volume of water in the receiving pool, other seeps or springs may be present in the pools. Stratified rock layers visible at the falls indicate water may move beneath the stream bed.”
  15. Entering the caves The Edwards Limestone is porous, the holes

    ranging from microscopic to cavernous. Caves offer insight into the underground aquifer.
  16. Drought In a rainfall comparative study we did on 2003-2014,

    we found that more than half of the recharge in eleven years occurred in just two of those years.
  17. All the engineering in the world will not increase recharge

    when there is no rain. The recharge dams require a substantial rain event for runoff to exceed the rate of natural recharge infiltration over the recharge zone.
  18. Hazards Having collector in the field means we know our

    location at all times, and if there is cell service, we can find each other, too. Not having to carry all the tools replaced by Collector and mobile devices means we can carry all sorts of emergency gear… for all kinds of emergencies!
  19. …and for some, “you get to climb hills only frequented

    by feral Spanish goats.” Some MPs are within walking distance of driving distance…
  20. Testimonials Hear from the Conservation Easement Inspection team members, and

    how Collector has changed the way they do business!
  21. The hill from the top, running down The hill from

    the bottom, looking up Ben and the Bees!
  22. We are happy campers and more efficient inspectors now that

    we use Collector for ArcGIS. Thanks, ESRI!
  23. Aquifer Protection Team – Current and Former Members •EAA Staff

    -Bob Hall -Robin Tremallo -Chris Abernathy -Ben Urbanczyk -Fred Wills -Doug Grieco -Jenna Pace -Brent Doty -Taylor Bruecher -Emily Thompson -Thomas Marsalia -Clayton Rollins -Sarah Eason •CoSA EAPP staff -Susan Courage -David Bernal Thanks to all for contributions of stories, photos and wisdom.
  24. Non-EAA image credits ➢1 Wild hog: http://wpsd.images.worldnow.com/images/9386641_G.jpg ➢2 Wild hog:

    http://www.fieldandstream.com/sites/fieldandstream.com/files/styles/large_1x_/public/images/2016/12/hog 1.jpg?itok=9YUhnkv8&fc=50,50 ➢3 Feral hog: http://media.arkansasonline.com/img/photos/2015/04/10/shutterstock_153912332_t630.jpg?30004eeab9f b5f824ff65e51d525728c55cf3980 ➢4 Javelina: https://bloximages.chicago2.vip.townnews.com/tucson.com/content/tncms/assets/v3/editorial/5/4e/54e542 e3-3b50-50b9-ba22-db2e6c9cb5b7/555d23dcee39e.image.jpg ➢5 Javelina: https://bloximages.chicago2.vip.townnews.com/tucson.com/content/tncms/assets/v3/editorial/5/4e/54e542 e3-3b50-50b9-ba22-db2e6c9cb5b7/555d23dcee39e.image.jpg ➢6 Feral hog: http://www.alreporter.com/wp-content/uploads/2014/04/feral%20hog%203.jpg ➢7 Feral hog: https://static.texascommunitymedia.com/cache/27/93/27932eb8817e03f5173e802cd332270a.jpg ➢8 Javelina: http://a.abcnews.com/images/US/gty_javelina_ll_131001_16x9_992.jpg ➢9 Feral hogs: https://s-media-cache- ak0.pinimg.com/originals/40/e2/6f/40e26fada41eb3f2e362fcb08834c168.jpg ➢10 Mountain lion: http://ww1.hdnux.com/photos/10/67/16/2323332/5/1024x1024.jpg ➢11 Well and bucket: https://previews.123rf.com/images/albund/albund1303/albund130300071/18797680-A-brick-water-well- with-a-wooden-roof-and-bucket-attached-to-a-rope-in-a-flat-barren-landscape-with--Stock-Photo.jpg