| 11. | There are currently about 100 injection wells in the city administration offices and housing complexes.
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| 12. | The 36 workers aboard the platform pumped heavy drilling mud into the leaking injection well.
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| 13. | Critics of waste water injection wells cite concerns relating to the injectate polluting receiving waters.
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| 14. | Artificial recharge of floodwater using injection wells was first developed in the Federal District around 1953.
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| 15. | The development project includes 34 production wells, 30 water injection wells and three gas injection wells.
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| 16. | Water injection began in 1953 using water from Lakota wells, with 38 injection wells by 1958.
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| 17. | EPA regulations define six classes of injection wells.
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| 18. | The earthquake occurred near two hydraulic fracturing wastewater injection wells that are reportedly close to capacity.
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| 19. | Forty gas injection wells tap into the reservoir.
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| 20. | Also, Layne is able to drill deep injection wells to facilitate the disposal of treated wastewater.
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