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66475-02 0.3 06559-01 8.6 30816-01 1.2 63913-02 4.5 68045-01 <0.5 19060-02 <0.2 AA389-01 <0.5 66479-01 <0.2 GC-19 <0.005 0.01 GC-62 <0.005 0.009 GC-65 <0.005 no sample GC-29 no sample 0.006 T06R27E T06R26E T07R27E T06R28E T07R26E T06R29E T06R25E T06R23E T07R23E T05R24E T07R25E T06R24E T07R24E T08R26E T08R25E T05R25E T06R30E T07R22E T07R28E T05R23E T07R29E T08R27E T05R26E T08R24E T05R27E T09R26E T07R30E T07R21E T06R22E T04R24E T05R29E T08R23E T04R25E T04R23E T05R28E T05R22E T05R30E T07R20E T09R25E T06R31E T09R27E T08R28E T08R22E Gl ad e Creek Dea d C a nyo n Fo ur mile Canyon East Branc h Gla d e Creek C arte r C a n y o n T06R31E T07R30E T08R22E Bing Canyon Switzler Canyon Moore Canyon F i g u r e 5 F i g u r e 5 D I S T R I B U T I O N O F N I T R A T E D I S T R I B U T I O N O F N I T R A T E I N W A N A P U M A Q U I F E R I N W A N A P U M A Q U I F E R G L A D E / F O U R M I L E S U B B A S I N G L A D E / F O U R M I L E S U B B A S I N W R I A 3 1 L e v e l 2 W a t e r Q u a l i t y P r o j e c t W R I A 3 1 L e v e l 2 W a t e r Q u a l i t y P r o j e c t µ Sample Locations GC-19 - Wanapum Basalt Well Identifier* <0.005 - Nitrates (mg/L) Fall 2004 0.01 - Nitrates (mg/L) Spring 2005 2001 Agricultural Cropland (IRZ Consulting, 2004) Dryland Irrigated - permanent crop Irrigated - seasonal crop Populated Places (WSDOT) State Routes (WSDOT) County Roads (DNR) Watercourses (Ecology) Waterbodies (Ecology) Delineated Subbasins (Aspect Consulting) Counties (WSDOT) Township and Range (DNR) 0 20,000 40,000 60,000 Feet ACM 06-17-04 * If identifier begins with 'GC' then well was sampled by Aspect Consulting in the fall of 2004 and the spring of 2005 with both measurements presented, except as noted. For all other wells the single nitrate reading is from the latest available data.