Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 1

Appendix 3. Borehole geophysical data from wells in Montgomery and Walker 

Counties, Texas, April 2010

Table 1. Borehole geophysical data from wells in Montgomery (State wells TS-60-53-718,TS-60-54-805, TS-60-55-710, TS-60-53-516, 

TS-60-44-807, TS-60-35-503, and TS-60-45-412) and Walker (State well YU-60-28-802) Counties, Texas, April 2010.

Explanation of abbreviations on borehole geophysical logs

SJRA San Jacinto River Authority

HGSD Harris-Galveston Subsidence District

ft feet

in inches

diam. diameter

GAM(NAT) Natural Gamma

CPS Counts per second

AP-COND Temperature corrected induction conductivity

MMHO/M Millimhos per meter

DEPTH Depth below land-surface, in feet

Ind.RES Calculated induction resistivity from measured AP-COND, where Ind.RES=10,000/AP-COND

OHM-M Ohm-meter

RES Single-point resistance

RES(FL) Fluid Resistivity

SP COND Specific conductivity at ambient fluid temperature

US/CM Microsiemens per centimeter at ambient fluid temperature

TEMP Temperature of Fluid (water)

DEG F Degrees Fahrenheit

DEL TEMP Delta Temperature

NK Not Known

LSD Land Surface Datum

NAVD North American Vertical Datum

CCL Casing Collar Locator
2 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

Altitude of log datum (ft above NAVD of 1988) 138.0

Casing depth (ft) NK

Log datum LSD

Well name TS-60-53-718

County MONTGOMERY

Borehole bit size (in) 8.0

Borehole depth (ft) 240.0

Casing diam. (in) 6.0

Latitude 30.1399722

Date of log 04-29-2010

Owner SJRA Site ID 300824095274701

State TEXAS

Longitude -95.46313889

Depth

1ft:120ft

RES(FL)

0 OHM-M 50

TEMP

68 DEG F 78

Ind. RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

SP COND

200 US/CM 400

GAM(NAT)

0 CPS 150

RES

2 OHM-M 2000

AP-COND

0 MMHO/M 500

10

20

30

40

50

60

70

80

90

100

110

120

Figure A-1.
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 3

90

100

110

120

130

140

150

160

170

180

190

200

210

220

230

Depth

1ft:120ft

RES(FL)

0 OHM-M 50

TEMP

68 DEG F 78

Ind. RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

SP COND

200 US/CM 400

GAM(NAT)

0 CPS 150

RES

2 OHM-M 2000

AP-COND

0 MMHO/M 500

Figure A-1. —Continued
4 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

Altitude of log datum (ft above NAVD of 1988) 165.0

Casing depth (ft) 130.0

Log datum LSD

Well name TS-60-54-805

County MONTGOMERY

Borehole bit size (in) 8.0

Borehole depth (ft) 156.0

Casing diam. (in) 6.0

Latitude 30.14250

Date of log 04-29-2010

Owner SJRA Site ID 300833095173201

State TEXAS

Longitude -095.29222

Depth

1ft:120ft

RES(FL)

0 OHM-M 50

TEMP

68 DEG F 82

Ind. RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

SP COND

250 US/CM 450

RES

2 OHM-M 2000

GAM(NAT)

0 CPS 150

AP-COND

0 MMHO/M 250

10

20

30

40

50

60

70

80

90

100

110

120

Figure A-2.
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 5

90

100

110

120

130

140

150

Depth

1ft:120ft

RES(FL)

0 OHM-M 50

TEMP

68 DEG F 82

Ind. RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

SP COND

250 US/CM 450

RES

2 OHM-M 2000

GAM(NAT)

0 CPS 150

AP-COND

0 MMHO/M 250

Figure A-2. —Continued
6 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

Casing depth (ft) 294.0

Altitude of log datum (ft above NAVD of 1988) 112.0

Well name TS-60-55-710

Log datum LSD

Borehole bit size (in) 8.0

County MONTGOMERY

Casing diam. (in) 6.0

Borehole depth (ft) 294.0

Latitude 30.1469444

Date of log 04-29-2010

Site ID 300849095143301

State TEXAS

Owner SJRA

Longitude -095.2425

Depth

1ft:120ft

GAM(NAT)

0 CPS 150

RES(FL)

0 OHM-M 50

TEMP

69 DEG F 72

RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

CALIPER

0 INCH 10

CCL

60000 CPS 63000

SP COND

500 US/CM 600

10

20

30

40

50

60

70

80

90

100

110

120

Figure A-3.
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 7

90

100

110

120

130

140

150

160

170

180

190

200

210

220

230

240

250

Figure A-3. —Continued
8 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

230

240

250

260

270

280

290

Depth

1ft:120ft

GAM(NAT)

0 CPS 150

RES(FL)

0 OHM-M 50

TEMP

69 DEG F 72

RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

CALIPER

0 INCH 10

CCL

60000 CPS 63000

SP COND

500 US/CM 600

Figure A-3. —Continued
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 9

Altitude of log datum (ft above NAVD of 1988) 129.0

Casing depth (ft) 752.0

Log datum LSD

Well name TS-60-53-516

County MONTGOMERY

Borehole bit size (in) 6.0

Borehole depth (ft) 807.0

Casing diam. (in) 5.0

Latitude 30.2079028

Date of log 04-29-2010

Owner SJRA Site ID 301228095272501

State TEXAS

Longitude -95.45741667

Depth

1ft:120ft

TEMP

69 DEG F 82

RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

RES (FL)

0 OHM-M 50

GAM(NAT)

0 CPS 150

CALIPER

0 INCH 10

CCL

60000 INCH 63000

SP COND

250 US/CM 500

10

20

30

40

50

60

70

80

90

100

110

120

Figure A-4.
10 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

100

110

120

130

140

150

160

170

180

190

200

210

220

230

240

250

260

Figure A-4. —Continued
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 11

Figure A-4. —Continued

240

250

260

270

280

290

300

310

320

330

340

350

360

370

380

390

400
12 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

Figure A-4. —Continued

380

390

400

410

420

430

440

450

460

470

480

490

500

510

520

530

540
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 13

Figure A-4. —Continued

520

530

540

550

560

570

580

590

600

610

620

630

640

650

660

670

680
14 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

Figure A-4. —Continued

660

670

680

690

700

710

720

730

740

750

760

770

780

790

800

Depth

1ft:120ft

TEMP

69 DEG F 82

RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

RES (FL)

0 OHM-M 50

GAM(NAT)

0 CPS 150

CALIPER

0 INCH 10

CCL

60000 INCH 63000

SP COND

250 US/CM 500
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 15

Casing depth (ft) 715.0

Altitude of log datum (ft above NAVD of 1988) 172.0

Well name TS-60-44-807

Log datum LSD

Borehole bit size (in) 8.0

County MONTGOMERY

Casing diam. (in) 6.0

Borehole depth (ft) 715.0

Latitude 30.2514444

Date of log 04-29-2010

Site ID 301505095343704

State TEXAS

Owner SJRA

Longitude -095.57697222

Depth

1ft:120ft

TEMP

68 DEG F 78

RES

0.2 OHM-M 200

DEL TEMP

-0.5 DEG F 0.5

GAM(NAT)

0 CPS 150

CALIPER

0 INCH 10

CCL

60000 CPS 63000

10

20

30

40

50

60

70

80

90

100

110

Figure A-5.
16 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

100

110

120

130

140

150

160

170

180

190

200

210

220

230

240

250

260

Figure A-5. —Continued
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 17

Figure A-5. —Continued

240

250

260

270

280

290

300

310

320

330

340

350

360

370

380

390

400
18 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

Figure A-5. —Continued

380

390

400

410

420

430

440

450

460

470

480

490

500

510

520

530

540
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 19

Figure A-5. —Continued

520

530

540

550

560

570

580

590

600

610

620

630

640

650

660

670

680
20 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

Figure A-5. —Continued

660

670

680

690

700

710

Depth

1ft:120ft

TEMP

68 DEG F 78

RES

0.2 OHM-M 200

DEL TEMP

-0.5 DEG F 0.5

GAM(NAT)

0 CPS 150

CALIPER

0 INCH 10

CCL

60000 CPS 63000
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 21

Casing depth (ft) 98.0

Altitude of log datum (ft above NAVD of 1988) 240.0

Well name TS-60-35-503

Log datum LSD

Borehole bit size (in) 8.0

County MONTGOMERY

Casing diam. (in) 6.0

Borehole depth (ft) 118.0

Latitude 30.4436944

Date of log 04-30-2010

Site ID 302636095422801

State TEXAS

Owner SJRA

Longitude -95.70813889

Depth

1ft:120ft

GAM(NAT)

0 CPS 150

RES(FL)

0 OHM-M 50

DEL TEMP

-0.5 DEG F 0.5

TEMP

65 DEG F 78

SP COND

500 US/CM 600

IND. RES

2 OHM-M 2000

AP-COND

0 MMHO/M 200

RES

2 OHM-M 2000

10

20

30

40

50

60

70

80

90

100

110

Depth

1ft:120ft

GAM(NAT)

0 CPS 150

RES(FL)

0 OHM-M 50

DEL TEMP

-0.5 DEG F 0.5

TEMP

65 DEG F 78

SP COND

500 US/CM 600

IND. RES

2 OHM-M 2000

AP-COND

0 MMHO/M 200

RES

2 OHM-M 2000

Figure A-6.
22 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

Casing depth (ft) 242.0

Altitude of log datum (ft above NAVD of 1988) 240.0

Well name TS-60-45-412

Log datum LSD

Borehole bit size (in) 6.0

County MONTGOMERY

Casing diam. (in) 4.0

Borehole depth (ft) 261.0

Latitude 30.3302093

Date of log 04-30-2010

Site ID 301948095290002

State TEXAS

Owner SJRA

Longitude -95.48355196

Depth

1ft:120ft

GAM(NAT)

0 CPS 150

RES(FL)

0 OHM-M 60

TEMP

68 DEG F 78

Ind. RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

SP COND

0 US/CM 400

AP-COND

0 MMHO/M 500

RES

2 OHM-M 2000

10

20

30

40

50

60

70

80

90

100

110

120

130

Figure A-7.
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 23

110

120

130

140

150

160

170

180

190

200

210

220

230

240

250

260

Depth

1ft:120ft

GAM(NAT)

0 CPS 150

RES(FL)

0 OHM-M 60

TEMP

68 DEG F 78

Ind. RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

SP COND

0 US/CM 400

AP-COND

0 MMHO/M 500

RES

2 OHM-M 2000

Figure A-7. —Continued
24 Estimated Rates of Groundwater Recharge By Using Environmental Tracers in Montgomery County, Texas, 2008

Altitude of log datum (ft above NAVD of 1988) 315.0

Casing depth (ft) NK

Log datum LSD

Well name YU-60-28-802

County WALKER

Borehole bit size (in) 6.0

Borehole depth (ft) 153.6

Casing diam. (in) 4.0

Latitude 30.5283675

Date of log 04-30-2010

Owner HGSD Site ID 303143095334801

State TEXAS

Longitude -095.56413856

Depth

1ft:120ft

RES(FL)

0 OHM-M 50

TEMP

68 DEG F 78

Ind. RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

RES

2 OHM-M 2000

GAM(NAT)

0 CPS 150

SP COND

200 US/CM 400

AP-COND

0 MMHO/M 300

10

20

30

40

50

60

70

80

90

100

110

120

Figure A-8.
Appendix 3. Borehole geophysical data from wells in Montgomery and Walker Counties, Texas, April 2010 25

90

100

110

120

130

140

150

Depth

1ft:120ft

RES(FL)

0 OHM-M 50

TEMP

68 DEG F 78

Ind. RES

2 OHM-M 2000

DEL TEMP

-0.5 DEG F 0.5

RES

2 OHM-M 2000

GAM(NAT)

0 CPS 150

SP COND

200 US/CM 400

AP-COND

0 MMHO/M 300

Figure A-8. —Continued