UMAT0059430

Site Identification

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GW LogID:	UMAT 59430 Well Log Database
GW Well Tag Number:	155733
Tag Verified on Well:	No
Site Type:	WELL
Primary Use:	ASR & MUNICIPAL
Unused Status:
Site Source Organization:
Site Source OWRD:
Established By:	ANDREW WENTWORTH
Established Date:	12/23/2025
Bonded Company:	GREGORY DRILLING INC
Stage:	COMPLETE

Location

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Latitude/Longitude
Latitude:	45.80654900	Horiz. Error:	100.00 ft.
Longitude:	-119.27279600	Datum:	WGS1984
Lat/Long Source:	WELL LOG GPS

Location
TRSQQ:	WM 4.00N28.00E23SESE
Tax Map:	4N28230000211
Taxlot:	211
24 Quad:	HERMISTON
Basin:	7 - Umatilla
County:	Umatilla
WM District:	5
WM Region:	NC
LSD Elev:	644.35 Accy: 1.00 Datum: NAVD1988
Elev Source:	LIDAR
	Groundwater Mapping Tool

Water Rights

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Water Right PODs

POD	WRIS Details	Application	Permit	Cert	Transfers	Claim	supplemental	priority_date	Season of Use	max_rate_cfs	rate_cfs	rate_cfs_est	TRSQQ
POD 4 - A WELL > UMATILLA RIVER	WRIS	AL 30							1/1 ~ 12/31	4.456	0.000	●	WM4.00N28.00E23SWSE

Well Construction History

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Well Construction History

Well Log id	Well Log	Work Type	Startcard	Well Tag	Owner Name	First Water	Max Case. Diam.	Max Case. Depth.	Max Seal Depth.	Max Depth	Completed Depth	Complete Date
UMAT 59430	Log	NEW	1077139		City of Hermiston	203.00	30	690.00	690.00	1390.00	1390.00	10/8/2025

Well Log	Aquifer	Aq at Max Depth	System Aquifer	Regional USGS Aquifer	Local USGS Aquifer
UMAT 59430	Columbia River Basalt	Late Tertiary Basalt Aq	Late Tertiary Basalt Aquifers		Columbia River Basalt Group

Well Test

Well Log	Test Type	Yield(gpm)	Drawdown	Duration (hr)	Calculated Specific Capacity (gpm/ft)
UMAT 59430	Pump	1875.0	39.0	19.0	48.08

Lithology

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Lithology

Start Depth	End Depth	Prim. Lithology	Lithology Desc.	Water Bearing Zone	Water Bearing Zone WL
0.00	96.00	Sand	Brown Sand & Silt
96.00	107.00	Clay	Brown Clay & Silt
107.00	141.00	Silt	Brown Silt & Sand
141.00	162.00	Sand & Gravel	Brown Sand & Gravel
162.00	203.00	Silt	Brown Silt & Sand & Gravel
203.00	220.00	Basalt	Soft Gray Basalt & Green Claystone	Yes	72.00
220.00	291.00	Basalt	Hard Gray Basalt
291.00	354.00	Basalt	Vesicular Gray Basalt & Green Claystone
354.00	359.00	Silt	Gray Silt & Clay
359.00	429.00	Basalt	Medium Gray Basalt & Green Claystone
429.00	448.00	Basalt	Hard Gray Basalt
448.00	455.00	Basalt	Medium Gray Basalt & Green Claystone
455.00	482.00	Basalt	Medium Basalt
482.00	502.00	Basalt	Medium Broken Gray Basalt
502.00	525.00	Basalt	Hard Gray Basalt
525.00	532.00	Basalt	Vesicular Gray Basalt & Green Claystone	Yes	169.00
532.00	549.00	Basalt	Medium Hard Gray Basalt
549.00	556.00	Basalt	Soft Gray Basalt & Broken Red Claystone
556.00	567.00	Basalt	Medium Gray Basalt
567.00	572.00	Basalt	Soft Gray & Brown Basalt
572.00	594.00	Basalt	Medium Gray Basalt & Green Claystone
594.00	596.00	Basalt	Medium Gray Basalt & Green Claystone	Yes	137.00
596.00	639.00	Basalt	Medium Gray Basalt & Gray Claystone
639.00	642.00	Basalt	Vesicular Gray Basalt & Green Claystone
642.00	686.00	Basalt	Medium Gray Basalt & Green Claystone
686.00	700.00	Basalt	Medium Hard Gray Basalt
700.00	712.00	Basalt	Vesicular Gray Basalt & Green Claystone	Yes	420.00
712.00	714.00	Basalt	Medium Gray Basalt
714.00	722.00	Basalt	Broken Gray Basalt & Green Claystone
722.00	803.00	Basalt	Hard Gray Basalt
803.00	818.00	Basalt	Vesicular Gray Basalt & Green Claystone
818.00	992.00	Basalt	Hard Gray Basalt
992.00	1004.00	Basalt	Vesicular Gray Basalt & Green Claystone
1004.00	1007.00	Basalt	Medium Gray Basalt
1007.00	1031.00	Basalt	Vesicular Gray Basalt & Green Claystone
1031.00	1195.00	Basalt	Medium Hard Gray Basalt & Green Claystone
1195.00	1222.00	Basalt	Vesicular Gray Basalt & Green Claystone
1222.00	1283.00	Basalt	Medium Hard Gray Basalt
1283.00	1316.00	Basalt	Hard Gray Basalt
1316.00	1324.00	Basalt	Soft Gray Basalt & Gray Claystone
1324.00	1330.00	Basalt	Soft Gray Basalt
1330.00	1366.00	Basalt	Vesicular Gray Basalt & Green Claystone
1366.00	1390.00	Basalt	Hard Gray Basalt

Well Construction

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Construction

Feature Type	Start Depth	End Depth	Diameter	Material Type
Casing	0.00	40.00	30.000	STEEL
Casing	-2.00	690.00	24.000	STEEL
Seal	0.00	690.00	28.000	CEMENT
Open Interval	674.00	1004.00	12.000	SCREEN
Open Interval	1030.00	1390.00	12.000	SCREEN

Measured Water Level

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*Records/Page:

Measured Water Level

Date	Time	Water Level (BLSD)	WL Elev (ft AMSL)	Organization	OWRD	Method	Status	MP Height
10/8/2025		420.00	224.35	DRILLER	GWATER	REPORTED	UNKNOWN

Geochemistry

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*Records/Page:

Geochemistry Samples

Sample Name	Depth	Sample Lab	Sample Source	Method	Strat Unit	Strat Picked By	Rock Type
UMAT0059430_265	265	WSU	OWRD	XRF	Crbg.Smb.Pomona	Aaron Orr	Basalt
UMAT0059430_345	345	WSU	OWRD	XRF	Crbg.Smb.Umatilla	Aaron Orr	Basalt
UMAT0059430_400	400	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SentinelGap	Aaron Orr	Basalt
UMAT0059430_410	410	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SentinelGap	Aaron Orr	Basalt
UMAT0059430_420	420	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SentinelGap	Aaron Orr	Basalt
UMAT0059430_470	470	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SentinelGap	Aaron Orr	Basalt
UMAT0059430_510	510	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SentinelGap	Aaron Orr	Basalt
UMAT0059430_580	580	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SentinelGap	Aaron Orr	Basalt
UMAT0059430_695	695	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SandHollow	Aaron Orr	Basalt
UMAT0059430_790	790	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SandHollow	Aaron Orr	Basalt
UMAT0059430_830	830	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SandHollow	Aaron Orr	Basalt
UMAT0059430_940	940	WSU	OWRD	XRF	Crbg.Wb.FrenchmanSprings.SandHollow	Aaron Orr	Basalt
UMAT0059430_1050	1050	WSU	OWRD	XRF	Crbg.Grb.N2	Aaron Orr	Basalt
UMAT0059430_1110	1110	WSU	OWRD	XRF	Crbg.Grb.N2	Aaron Orr	Basalt
UMAT0059430_1180	1180	WSU	OWRD	XRF	Crbg.Grb.N2	Aaron Orr	Basalt
UMAT0059430_1300	1300	WSU	OWRD	XRF	Crbg.Grb.N2	Aaron Orr	Basalt
UMAT0059430_1375	1375	WSU	OWRD	XRF	Crbg.Grb.N2	Aaron Orr	Basalt

Unnormalized Major Elements

Sample Name	Depth	SiO2	TiO2	Al2O3	FeO	FeOTotal	MnO	MgO	CaO	Na2O	K2O	P2O5	Major Sum	LOI %
UMAT0059430_265	265	51.17	1.62	14.41	10.42	10.42	0.17	6.82	10.46	2.27	0.56	0.23	98.14	1.86
UMAT0059430_345	345	54.47	2.79	13.96	11.11	11.11	0.24	2.09	6.35	3.39	2.75	1.04	98.20	1.80
UMAT0059430_400	400	51.07	3.10	13.19	12.85	12.85	0.34	3.87	9.17	2.85	1.38	0.61	98.42	1.58
UMAT0059430_410	410	50.59	3.05	12.95	14.87	14.87	0.21	4.17	8.12	2.81	1.16	0.59	98.54	1.46
UMAT0059430_420	420	51.12	3.06	12.99	14.51	14.51	0.23	4.18	8.13	2.76	1.38	0.61	98.96	1.04
UMAT0059430_470	470	51.12	3.06	12.97	14.73	14.73	0.22	4.25	8.17	2.85	1.27	0.60	99.24	0.76
UMAT0059430_510	510	51.09	3.07	12.97	14.91	14.91	0.25	4.26	8.16	2.83	1.33	0.61	99.49	0.51
UMAT0059430_580	580	51.02	3.05	12.97	14.62	14.62	0.23	4.18	8.14	2.72	1.40	0.62	98.95	1.05
UMAT0059430_695	695	50.84	2.90	13.12	14.12	14.12	0.22	4.40	8.30	2.64	1.35	0.56	98.44	1.56
UMAT0059430_790	790	51.36	2.82	13.19	14.21	14.21	0.22	4.32	8.22	2.80	1.36	0.58	99.08	0.92
UMAT0059430_830	830	50.05	2.90	12.99	14.17	14.17	0.23	4.29	8.26	2.71	1.10	0.56	97.26	2.74
UMAT0059430_940	940	50.95	2.89	13.16	14.33	14.33	0.22	4.40	8.20	2.85	1.27	0.57	98.84	1.16
UMAT0059430_1050	1050	53.67	1.71	14.02	11.33	11.33	0.19	4.43	8.17	2.86	1.30	0.32	98.01	1.99
UMAT0059430_1110	1110	54.19	1.73	14.05	11.00	11.00	0.19	4.71	7.98	3.05	1.29	0.33	98.53	1.47
UMAT0059430_1180	1180	53.65	1.72	14.03	11.30	11.30	0.19	4.69	8.48	2.87	1.27	0.32	98.53	1.47
UMAT0059430_1300	1300	52.70	1.80	13.84	12.05	12.05	0.20	5.04	8.65	2.91	0.92	0.29	98.40	1.60
UMAT0059430_1375	1375	52.99	1.90	13.82	12.22	12.22	0.21	4.77	8.56	2.88	1.10	0.32	98.77	1.23

Normalized Major Elements

Sample Name	Depth	SiO2	TiO2	Al2O3	FeOTotal	MnO	MgO	CaO	Na2O	K2O	P2O5	Sum
UMAT0059430_265	265	52.15	1.65	14.69	10.62	0.18	6.95	10.66	2.31	0.57	0.23	100.00
UMAT0059430_345	345	55.47	2.85	14.22	11.31	0.24	2.13	6.47	3.45	2.80	1.06	100.00
UMAT0059430_400	400	51.89	3.15	13.40	13.05	0.34	3.93	9.32	2.89	1.40	0.62	100.00
UMAT0059430_410	410	51.35	3.09	13.14	15.10	0.22	4.23	8.24	2.86	1.18	0.60	100.00
UMAT0059430_420	420	51.65	3.10	13.13	14.66	0.23	4.22	8.22	2.79	1.39	0.61	100.00
UMAT0059430_470	470	51.51	3.09	13.07	14.84	0.23	4.28	8.23	2.87	1.28	0.61	100.00
UMAT0059430_510	510	51.36	3.09	13.04	14.98	0.25	4.28	8.20	2.85	1.34	0.61	100.00
UMAT0059430_580	580	51.56	3.08	13.10	14.78	0.23	4.22	8.22	2.75	1.42	0.63	100.00
UMAT0059430_695	695	51.64	2.95	13.33	14.34	0.22	4.47	8.44	2.68	1.37	0.57	100.00
UMAT0059430_790	790	51.84	2.85	13.31	14.34	0.22	4.36	8.29	2.82	1.38	0.58	100.00
UMAT0059430_830	830	51.46	2.98	13.35	14.57	0.24	4.41	8.50	2.79	1.13	0.57	100.00
UMAT0059430_940	940	51.54	2.93	13.31	14.50	0.22	4.45	8.30	2.88	1.29	0.58	100.00
UMAT0059430_1050	1050	54.76	1.75	14.30	11.56	0.20	4.52	8.34	2.92	1.32	0.33	100.00
UMAT0059430_1110	1110	55.00	1.76	14.26	11.17	0.19	4.78	8.10	3.10	1.31	0.33	100.00
UMAT0059430_1180	1180	54.45	1.75	14.24	11.47	0.19	4.76	8.61	2.91	1.29	0.32	100.00
UMAT0059430_1300	1300	53.55	1.83	14.06	12.25	0.21	5.12	8.79	2.96	0.94	0.29	100.00
UMAT0059430_1375	1375	53.65	1.93	13.99	12.38	0.21	4.83	8.67	2.91	1.11	0.32	100.00

Trace Elements XRF

Sample Name	Depth	Ba	Ce	Cr	Cu	Ga	La	Nb	Nd	Ni	Pb	Rb	Sc	ScF	Th	U	V	Y	Zn	Zr
UMAT0059430_265	265	250	39	94.3	49.3	17.4	18.5	11.0	21.3	46.3	3.8	12.7	35.4	35.4	2.4	0.4	278.2	29.0	96.4	137.1
UMAT0059430_345	345	3687	104	0.0	11.7	23.2	45.8	24.0	50.7	3.0	13.0	45.8	27.6	27.6	5.2	0.8	179.4	53.1	134.9	527.6
UMAT0059430_400	400	657	58	12.4	26.5	22.1	26.1	15.5	32.8	13.7	6.9	35.3	37.0	37.0	3.3	0.7	444.5	44.9	149.8	206.0
UMAT0059430_410	410	639	55	11.8	24.9	21.2	26.6	14.9	33.0	13.1	5.0	26.6	36.7	36.7	2.9	0.3	445.1	44.5	145.1	200.5
UMAT0059430_420	420	607	60	10.9	27.0	22.7	23.5	15.9	34.6	12.8	6.6	36.3	37.6	37.6	3.2	1.1	443.6	45.4	147.3	204.5
UMAT0059430_470	470	612	59	14.1	27.0	21.9	22.5	15.0	32.6	14.1	4.8	30.8	35.8	35.8	3.6	0.8	442.4	44.0	144.0	199.5
UMAT0059430_510	510	613	57	11.2	26.5	20.8	25.8	15.8	32.9	13.0	8.0	36.5	37.0	37.0	2.8	0.1	443.1	44.5	147.2	200.5
UMAT0059430_580	580	620	60	10.6	25.2	21.4	26.1	15.7	32.4	13.6	6.7	38.1	36.9	36.9	3.8	1.1	439.8	44.8	146.6	198.1
UMAT0059430_695	695	560	58	36.5	28.9	21.7	23.1	13.8	31.4	16.1	5.5	32.3	36.8	36.8	2.5	1.1	420.5	40.9	138.8	183.1
UMAT0059430_790	790	602	53	45.2	32.6	20.2	25.1	15.4	31.6	13.8	6.3	36.0	35.1	35.1	3.6	1.7	404.0	43.0	138.2	192.9
UMAT0059430_830	830	540	49	45.4	29.2	20.5	23.6	15.1	28.5	18.0	6.1	30.1	35.6	35.6	3.5	1.9	424.4	39.9	136.1	182.0
UMAT0059430_940	940	570	49	44.0	29.8	21.3	20.7	14.1	29.6	15.1	6.6	34.8	36.0	36.0	3.0	0.1	419.4	41.7	139.3	186.5
UMAT0059430_1050	1050	543	42	43.5	25.0	20.3	20.3	12.1	23.4	10.6	5.8	37.9	34.3	34.3	3.5	1.5	289.3	35.9	115.0	167.3
UMAT0059430_1110	1110	556	39	41.8	28.0	19.2	20.7	11.3	23.1	10.9	6.2	33.4	34.0	34.0	3.4	0.0	299.1	34.0	115.9	165.4
UMAT0059430_1180	1180	543	38	43.5	28.9	19.9	19.9	11.6	21.5	11.8	5.6	32.3	33.9	33.9	2.9	1.3	300.9	34.4	114.5	159.8
UMAT0059430_1300	1300	475	34	42.9	30.9	19.1	17.8	10.8	19.8	12.5	4.9	18.9	35.6	35.6	2.2	0.2	314.9	33.0	112.1	151.5
UMAT0059430_1375	1375	484	39	38.1	28.4	20.7	15.2	11.0	26.7	11.3	4.9	29.6	35.3	35.3	2.5	0.9	317.4	35.5	116.8	160.0

Trace Elements - ICPMS

Sample Name	Depth	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Ba	Th	Nb	Y	Hf	Ta	U	Pb	Rb	Cs	Sr	Sc	Zr
UMAT0059430_265	265
UMAT0059430_345	345
UMAT0059430_400	400
UMAT0059430_410	410
UMAT0059430_420	420
UMAT0059430_470	470
UMAT0059430_510	510
UMAT0059430_580	580
UMAT0059430_695	695
UMAT0059430_790	790
UMAT0059430_830	830
UMAT0059430_940	940
UMAT0059430_1050	1050
UMAT0059430_1110	1110
UMAT0059430_1180	1180
UMAT0059430_1300	1300
UMAT0059430_1375	1375

Stratigraphy

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*Records/Page:

Stratigraphy

Start Depth	End Depth	Start Depth Elev.	End Depth Elev.	Depth Thickness	Stratigraphy Unit	Sample Source	Picked By
0.00	203.00	644.35	441.35	203.00	Sediment.PostCrb	OWRD	Aaron Orr
203.00	291.00	441.35	353.35	88.00	Crbg.Smb.Pomona	GEOCHEM	Aaron Orr
291.00	354.00	353.35	290.35	63.00	Crbg.Smb.Umatilla	GEOCHEM	Aaron Orr
354.00	359.00	290.35	285.35	5.00	EllensburgFm.Mabton	OWRD	Aaron Orr
359.00	594.00	285.35	50.35	235.00	Crbg.Wb.FrenchmanSprings.SentinelGap	GEOCHEM	Aaron Orr
594.00	992.00	50.35	-347.65	398.00	Crbg.Wb.FrenchmanSprings.SandHollow	GEOCHEM	Aaron Orr
992.00	1007.00	-347.65	-362.65	15.00	Crbg.Undifferentiated	OWRD	Aaron Orr
1007.00	1375.00	-362.65	-730.65	368.00	Crbg.Grb.N2	GEOCHEM	Aaron Orr

*Records/Page:

Flow Meter/Power Meter

No data matches search criteria.

Available Data

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Aquifer Test Completed:
Geophysical Log Completed:

Water Chemistry:
Flowing Well:
Saline:
Rock Geochemistry:	Yes

OWRD Recorder:
Other OWRD Recorder:

Oregon Water Resources Department
Groundwater Information System

Groundwater Site: UMAT 59430

Oregon Water Resources Department Groundwater Information System

Groundwater Site: UMAT 59430

Oregon Water Resources Department
Groundwater Information System