o o Revised Measuring-Point Elevations for Selected Wells in the Waihee and

lao Aquifer Areas on the Island of Maui

The USGS has been working with the National Geodetic Survey (NGS) to update benchmark and well measuring-point elevations in central Maui as part of a ground-water availability study with the Maui Department of Water Supply. The purpose of this effort is to ensure that water-level monitoring wells used in this study are tied to a common and accurate vertical datum.

Benchmark and reference-mark elevations were determined by the NGS using differential GPS (Global Positioning System) methods during September 2-4, and November 18-20, 2003.

Well measuring-point elevations were determined by the USGS using vertical leveling surveys from NGS benchmarks and USGS reference marks during September 22-26, and December 15-19,2003.

Measuring-point elevations for selected wells in the Waihee and lao aquifer areas are provided below. The difference between the previously reported and the revised measuring-point elevation for each well is also provided. Leveling notes and photographs of the measuring points are available in well folders maintained by the USGS Water Resources office in Honolulu.

It is important to recognize that the revised well fTleasuring-point elevations will result in a modification of the absolute water levels (referenced to mean sea level), but not the relative change in water levels measured over time (trend).

Historical water levels measured in these wells may be revised pending further research into possible causes for the differences between the previously reported and the revised well measuring-point elevations. Future water-level measurements will be based on the revised well measuring-point elevations.

Related links:

Ground-Water Availability in Central Maui - Project description

Recent Hydrologic Conditions, lao Aquifer area, Maui - Updated every three months

IWell measuring-point elevations, in feet above mean sea level, for selected wells in the Waihee land lao aquifer areas on Maui IReieased Jan-uary6,-·200-4;·-U-pdated-MaY2-1·~·004Usin-g-final·N-G-S-benchma~keleva-tiOns.-·---------·---·----

rfRM,~eteren~e-rr;~rk;-MP~-meas~rin-g- point;-ft:-feet;-==~n;'dataf'-'----'-----"'''--'--'-''----------... -----------.......... -

... ----.. ------...... ---.. -r-----·-----.. ·-·· --...... -.. - .... ---.. -.-.- r·-·----------· ---------------. r----------.... --.. -----.. ·-····---·------------·-----.. --.. ---.. -------·-.. -.--.--------..... --.

Well name Well no. Revised1

Iprevious Difference21~~~:u~~~:~:!~~t ~~:~~~~:n:~11 .. . ! _I... ... . ....

.------- I Ic. Takumi Engineering report (1/31/00) I Iprovides MP elevation of 639.37 ft for top I jof casing, based on leveling from a I ibenchmark elevation of 631.87 ft located I labout 200 ft from well (Exhibit A-1, Mink & I IYuen, 6/21/99). Driller's well-completion

Kupaa 1 5731-03 638.77 i 63937 -0.60 Ireport provides MP elevation of 638.10 ft

'i ' ifor top of casing (5/20/99). No record of

IMP survey notes and initial benchmark. I /Wailani Drilling and Ed Valera (surveyor) I !combined trigonometric leveling (using a

.

1 itotal station and vertical angles) from iTanaka's work and a carpenter's level to

I Iget the initial height of casing.

• o o I jUSGS reports MP elevation of 305.22 ft for ,

ItoP of casing, based on leveling from I I InearbY RM - 1-inch pipe (1/22/03). RM , . elevation of 304.50 ft provided by C.

Kanoa TH 5731-05 303.56 305.22 -1.66 Takumi Engineering. No record of RM survey notes and initial benchmark. K. Tanaka set the 1/2-in. pipe using , Itrigonometric leveling (using a total station

I ,and vertical angles). .

!Kanoa 1 !5731_02!30814 1

~IDriliers well-completion report has

-- __ lelevation of 309.15 ft for top of pump base iplate (5/29/99). No record of MP surveyor linitial benchmark.

I IDriller's well-completion report has MP I ,elevation 281.83 ft for top of sounding tube

Kanoa 2 5731-04 280.48 -- -- 1(6/7/00). C. Takumi Engineering report j(Aug. 2000) has 281.38 ft for top of Isounding tube (Exhibit A, Mink & Yuen, !7/12/00).

I IUSGS reports MP elevation of 285.23 ft for

I Itop of measuring tube, based on leveling Ifrom nearby RM - 3/4 inch pipe (8/12/97).

I IRM elevation of 266.63 ft given by W.S. I Iunemori Engineering. No record of RM I survey notes and initial benchmark in well

I . folder, however, Unemori confirms this I elevation from their notes. From

North 5631-02 283.76 I 285.23 -1.47 j information provided by Reed Ariyoshi of

Waihee 1

I W.S. Unemori, and Wendy Taomoto, MOWS, the best estimate of the difference

I Ibetween the top of the casing prior to I IPump installation and the measuring tube I after installation is 1.01 ft (old casing

I /higher in elevation). As a result, the old mp for data prior to August 1997, 284.78 ft, is

I [Very close to the new measuring tube lelevation plus 1.01 ft (284.77 ft).

I IHeight of measuring point modified after ,

I I Ipump installation. Measuring tube modified

I twice since pump installation in 1997 and Ileveling on 8/12/97. USGS reports MP ielevation of 284.39 ft for top of measuring !tube on 8/12/97. USGS reports MP lelevation of 284.33 ft for top of measuring

North 5631-03 283.62 itube on 3/30/99 after first modification,

Waihee 2 -- -- Ibased on measuring up from base plate !elevation of 284.11 ft. Previous leveling on 18/12/97 and 3130199 are based on RM !(3/4-inch pipe) elevation of 266.63 ft !provided by W.S. Unemori Engineering. No [record of RM survey notes and initial Ibenchmark in well folder, however, IUnemori confirms this elevation.

o o

WaiheeTH FF A1

IDriller's well-completion report provides lelevation of 248.05 ft for top of drilling

248.05 -1.88 Iplatform (10/15/74). Surveyed from State 10f Hawaii benchmark U-6: 250.37 ft (1974). No record of survey notes. .

JUSGS reports MP elevation of 380.66 ft for \top of 1. 75-inch PVC casing, based on

Waiehu TH 5430-04 380.95

D

ileveling from nearby RM - "X" chiseled in

380.66 0.29 iconcrete at entrance to TH D shelter 1(8/23/85). RM elevation of 380.01 ft Iprovided by Dan lum, DOWAlD (8/29/83). INa record of RM survey notes and initial Ibenchmark.

Waiehu 5430-05 381.16

Deep

IUSGS reports MP elevation of 380.84 ft for Itop of 10-inch casing, based on leveling .from RM - "X" chiseled in concrete at

380.84 0.32 lentrance to TH D shelter (8/23/85). RM lelevation of 380.01 ft provided by Dan Ilum, DOWAlD (8/29/83). No record of RM isurvey notes and initial benchmark.

iUSGS reports MP elevation of 492.51 ft for Itop of 1.5-inch PVC casing (9/24/75). iHowever, later field notes show top of Icasing as 491.79, and top of surrounding iwooden box as 492.51. No record of MP

Waiehu TH 5431-01 492.15

B

Isurvey notes and initial benchmark. !Probably surveyed from State of Hawaii Ibenchmark U-6: 250.37 ft (1974). Driller's Ireport provides elevation of 493.97 ft for

492.51 -- !top of drilling platform. Well has been Imeasured from top of wooden box since IUSGS started measuring well in July, 11982. Well modified 3/31/04 by USGS, ladding 0.74 ft to top of PVC casing. IRevised MP (top of PVC casing) combines ichanges due to recent surveying and Imodification. Elevation of top of box was ilowered by 0.42 ft from results of 12003/2004 surveying.

Waiehu 5430-02 338.05

Heights 2

~---'--CI ,-----;.---'----!Norman Saito Engineering Consultants, I jlnc. provides MP elevation of 416.75 ft for

I itop of 1-inch casing (9/14/82). No record of

Waiehu TH 5430-03 415,65 416.75 -1.10 iMP survey notes and initial benchmark. E IProbably surveyed from State of Hawaii

ibenchmark U-6: 250.37 ft (1974). Driller's Ireport provides elevation of 415 ft for land !surface.

I

/"

lo

0 0

I IUSGS reports MP elevation of 353.79 ft 1(12/1/99). No record of MP survey and initial benchmark. Dan lum (DOWAlD)

Mokuhau 1 I provides MP elevation of 353.57 ft for 5330-09 353.37 I 353.79 -0.42 (Pump 2) 4

I access port at base of pump (1/17/72). H.A.R. Austin Engineering provides lelevation of 353.17 ft for top of casing , I

! (6/4/~3). I,

Wailuku 1533~O5132331 IUSGS reports MP elevation of 32.17 ft for

32.17 0.16 Itop of casing, based on leveling from Shaft 33 Wailuku Courthouse NGS benchmark

iel~vation of 331.066 ft (4/17/97).

I IUSGS reports MP elevation of 551.33 ft for

I Itop of 6-inch coupling, based on leveling

I !from RM - 0.5 inch pipe located on the east Iside of the concrete foundation (4/11/75).

I iRM elevation of 550.61 ft provided by

Waikapu 1 5130-01 551.04 551.33 -0.29 INorman Saito Engineering, based on i Ileveling from Wailuku Courthouse NGS 1

I Ibenchmark (12/74). Dan lum (DOWAlD)

I Iprovides elevation of 552.08 ft for top of 8-:inch casing, and 551.15 ft for top of Iconductor pipe (5/14/74).

I IUSGS reports MP elevation of 519.33 ft for

I Itop of casing, based on leveling from

Waikapu 2 5130-02 518.96 i 519.33 -0.37 Waikapu 1 well MP elevation of 551.33 ft

I 1(6/21/83). DOWAlD as-built drawing !provides elevation of 519.47 ft for top of

I 120~inch casing.

I IUSGS surveying on 12/29/03 to top of 6-I linch threaded coupling welded to plate that I i lis welded to the top of the 18-inch casing

DWS I Waikapu 5131-01 764.87 I -- -- !(highest point after removing plug). CWRM

Iwell completion report and Water Mauka I iResources International as-built drawing

I Iprovides elevation of 764.7 ft for top plate

! Iwelded to 18-inch casing.

1 Revised well measuring-point elevations were determined by the USGS using vertical leveling from National Geodetic Survey benchmarks and reference marks in December 2003. NGS benchmark and reference mark elevations provided by NGS on 1/20104. leveling notes and photographs of the measuring points are available in well folders maintained by the USGS Hawaii District Office.

r2-;;;tf;r~~-~~-~~I~I~~db;;~bi;~~;i'~"-ih-~~~-~i~~;-f~~~-~h~-~~~;~~d-·~~I;·~~-;~~~i~~=~~i-~t--~I~~~ti~'~.-

/3 All information contained in USGS well folder. 1-'·---------------------------------··-'-·----'--'--'---------.-,----.-.-... --- .. _ ... -.. ,-

1

4 Maui Department of Water Supply refers to this well as Mokuhau Pump 2 (Well 502) whereas Commission on Water Resource Management well index refers to this well as Mokuhau 1.

'~:-, State of Hawaii ... r~ lTMENT OF LAND 8r N.ATURAL RE~' ~ES l' IN OF WATER' AND LAND DEVEL ~ r

o R ILL E R ' S REP 0 R'~ " : '

I" ( j'~;- I ,f . : t

:,:, ,STATE

DOWAlD Form 71(1)

~ ,.c;i.-'

, " r

!' '!

DESCRIPTION UL:T (," ,.,' n,~ )7 lf Date of report .,,~,?,,~~~,,~,~?~.""" ___ . Person filing report ___ .'~~~"~~."~.~~~"".,,,, _________ ,, ___ "" ___ ,, ______ . ___ ... m" .. "'.,,

A. OWNER .W~~~"~9.~"9?~".",,,,. ~f~~ '~I~.~~.~~~."~~~~~.Il9""."J?II""""",,,,,,,,,,,, ISLAND ,,~~~""'''''''''''''''''''. B. GENERAL LOCATION """~.:.}~}~.~?";."~,~ ... "-'(Wal.ehli"welJ.jf .. 543.l::J)l.L"".,,,,,,.".""""."." __ "" ____ ",,,.,,,,.,,.,,,,,,. __ C. DR I LLI NG COM PANY ""~~~~,,~l:'~~~.~5;L~C?.~ .... """"""" D. TYPE OF RIG """.<:?~~?"" .... "." .. " ... ,, DRILLING COMPLETED ".~ ... !\.:llg.~,~~?~ DRILLER ".~l"HeJl$iG.n.."." ... __ ""

month year * E. ELEVATION, msl: Top of drilling platform ,..493 .• 67..".", ft. Bench mark and method used to determine

Height of drilling platform above ground surface ,.""".,, .. ft. elevation: .County."dablm.U~.6 .. ~.25Q~3.70""" .. " F. HOLE SIZE: ... "'~""" __ .""""inch dia. to "".~E5.o""" ft. below drilling platform.

g.PP+.Qx~""~".",,inch dia. to "".,"""""" ft. below drilling platform . .. " .. """ .. ".""."""inch dia. to ",,""" """. ft. below drilling platform. Schedule 40

G. CASING INSTALLED: .l~"" .. in. I.D. x "."."",, in. wall solid section to ... !?'Q.Q"""" ft. below drilling platform. PVC Pipe ,l.!:L." in. I.D. x "" ..... ". in. wall perforated section to .~§.Q"" .. " .. ft. below drilling platform. Type of perforation ................ ,',." .. ,', .. ,"', ..... , .................. __ ... __ ...... ',., .. , ... ,,,,.,,,.,.,,, .. ,,. __ ., .. ,, __ ... ,,,,,.,"""',., .. ,

H. ANNULUS: Grouted " .. ~=."" .. ft. to "".~~~" ... ft. below drilling platform. Gravel packed "".~~,::."". ft. to ""~,::~""". ft. below drilling platform.

I. PERMANENT PUMP INSTALLATION: Pump type, make, serial no ... """."' ... N9.~"."."" .. """" .... """"""" .... "'''.''''''''''''''''.''''''''''." Capacity""""" ... ""." g.p.m. Motor type, H.P., .voltage, r.p.m. """"''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''""""""""""."".""" .. "" .... """",,,,, Depth of pump intake setting """ .. """" ft. below".""." .. " ... " .. " .. """""" .. " .... " .. ""."""", which elevation is """" .. ", .. .ft. Depth of bottom of airline " .. """" .. ,, ft. below "", ........ "" __ "."""." ... """" __ .,,""' __ """,,.,,.,, which elevation is """""" ... .ft.

above MSL HYDROLOGY J. INITIAL WATER LEVEL .. -:l:-1E5.!,E50.".ft. De1nw-ctTtttiTlg""platrOtltl. Date of measurement. ."".$l"s.ept,!".l.n,4,,,,,,,,,,,m,, K. INITIAL CHLORIDE: """""""",, ppm, total depth of well "."".""".,, ft. below drilling platform "."""".""."."." ... ''''''''''''

Sampling Date L. PUMPING TESTS: Reference point (R.P.) used: "".""" .. ",,. which elevation is """.""",,. ft.

Date ." .. """" .. NOne ... "."." ... __ "."""."""". Date "'''''.",,,,,'''''''''''''' .... " .. "."""",.,,"''',, Start water level """".""""".",,"",, ..... ft. below R. P. Start water level ""." " .. """""""""'''''".",,. ft. below R. P. End water level """"""""""""""""" .. ' ft. below R. P. End water level .. """""""."""""""." .. """" ft. below R. P. Depth of well """",,,,,.,,,"',,,,",,,,,,,,,,"'" ft. below R. P. Depth of well """"" .. ,,"""""""""""""""""jt. below R. P.

Elapsed Rate Draw- CI- Temp. Elapsed Rate Draw- CI- Temp. Time (hours) (gpm) down (tt.) (ppm) OF Time (hours) (gpm) down (tt.) (ppm) 'F

"".,,""'" to """"".". """"""" " .. ,,"""" """"""" .. ,,""""" "" .. """" to "",,"",," """"""" """"""" ''''''''" ... , "".""".,, " ..... """. to """,,",,.. ",,",,""" """" .... " "'''''''''''. "."""",,, ""." .. "." to """"."". "".""",,. " ... """,,. """"".... ""'".,,"" """"""" to """.".,," " .. ".""". to """ .. ,,"" . "" ... "" .. to ""."",, .. . . "",,,,,,,,, to ""."",, .. .

M. DRILLER'S LOG:

""."".,," to " .. ,,"",," """"".". to """" .. ,," """"".". to .... " .. "" .. """"".". to "".""",, .

SUBSURFACE FORMATION

Water Level Water Level Depth, ft. Rock Description & Remarks ft. Depth, ft. Rock Description & Remarks ft.

.. ,,""""" to """.""." """"".". to .. ,,""""" . See" attached" log. """.". ".""" ... " to ... "" .. "". .by"H.".T ... Stearns""""." " .. ,,"""" to """"" .. " """''',,'', to " ... " .. "."

"."",,.,," to """"",," "".""",,. to """""""

""" to ",,""'''''' .""." .. to "" ... """

"",," to """" ... " . . """"".,, to .. ,,""""" """""'''''''''''''''''''''''''''''''''''''''''' .""""".,, ".""" ... ,, to """""" .. """""""""""""'''''''''"."""""",, """.""." '''''''''''''' to .,,""'"'''' ""'''''''''''''''''''''''''''''''''''''''''''''''' "."""."" """"" .... to """"""" "".""".".""""""""."",,.,,""",,.,, """"""" "" .. """" to """"""" ''''''''''''''''''''''''''''''''''''''''''''''''"" ""'''''''''' "",,"",," to "" .. "" .... """"."""."""" .... """".""."."."" ".".""." . ... """",,. to .""""."" '''''''''''''''''''''''''''''''''''''''''''''''''''' """"""" """""" .. to """"."". """".""""""""","""'"""""""", """"."". "."""",,. to " ... """". .. .. " .. "."."""""".""""""""""",,. " .. """"" """".,, ... to """.",,'" ".""" .. " ..... """"""""""""""",,.. " ... """'" .. "".".,, .. to "" .. "...... """"'''''''''''''''''''''''''''''''''''''''''''' """"".,,' """".",,. to """.""." .. " .. """""""".",,"",,.,,.,,"""""'" """""""

* N. REMARKS: ,."~~.~?:?!l: .. ~,~"~?.~.t.":EY~.,~~~,~",,,.,,,,.,., ... , ... "."."".,.,."",."."" ... " ... , .. "."" ......... "" .................. " .. __ ...... .

FOR DRILLER'S USE

Job Name " ____ " ____ . __ ,,,,. ________ __

Job No. __________________________________ .

INSTRUCTIONS: Send three(3) copies to: Manager-Chief Engineer, Division of Water and Land Development, P. D. Box 373, Honolulu, Hawaii 96809.

REFERENCES: Chapter 178, entitled "Artesian Wells, Generally," HRS, as amended by Act 123 SLH 1970. Honolulu Board of Water Supply, "Rules and Regulations Providing for the Protection, Development and Conservation of Water Resources." Sec't 8-105(j). "Powers, Duties and Functions of the Board," Charter of the City and County of Honolulu, 1959.

FOR OFFICIAL USE

Latitude "~O".!?4"')(,,.~.~.,, . 156 31 ()( 04· Longitude " .. """"""""""" .. "

5431-01 Well No. ______________________________ __

.... '

" '" o Test hole "B" at Waiehu, Maui (US~Ol"i) 20° 54' Drilled for Wailuku Sugar Co. and -~ 156 0 31' Elevation: 493.67 ft.

37" North Latitude IS" West longitude

Driller: Continental Drilling Co. Date Started: June 12, 1974 Diameter: 3 inches

Date Completed: August 8 9 1974 Ca sing: 1 1/2" PVC length: 555 feet (40 ft. perforated)

Fonnation (Logged by H. T. Stearns. Sept. 7, 1974) Water level: 16.60 ft. above MSl

Water level recorder installed Aug. 10. 1974

Red soil. Nearly completely decomposed cobbles (older

all uvium). Diverse weathered fragments of rock probably

cobbles. Three pieces of fine grained basalt probably

boulders. Deeply weathered basalt, almost soil with

white specks. Deeply weathered basalt. almost soil with

white specks. Deeply weathered basalt. almost soil with

white specks. .' Deeply weathered pahoehoe. almost soil with

white specks. Deeply weathered pahoehoe, almost soil with

white specks. Deeply weathered pahoehoe beginning to core. Deeply weathered pahoehoe beginning to core. Deeply weathered pahoehoe. olivines recognizable. Deeply weathered pahoehoe. Partly weathered pahoehoe. Slightly weathered pahoehoe. 2 1/2 ft. dense

core with highly vesicular weathered basalt. Partly weathered olfvine feldspar pahoehoe. More weathered olivine feldspar pahoehoe. Partly weathered olivine feldspar pahoehoe with

some small cores. Partly weathered olivine feldspar pahoehoe with

larger cores. Fresher olivine pahoehoe basalt. very vesicular. Fresher olivine pahoehoe basalt. very vesicular. Fresher olivine pahoeho~ basalt. very vesicular.

- 1 -

DoPJh - Ft.

3-16

16-24

24-34

34-44

44-56

56-66

66-68

68-78 78-88 88-98 98-108

108-118 118-124

124-134 134-135 135-145

145-155

155-165 165-175 175-185 185-189

Length 1.0 Ft.

0.6

1.2

0.6

0.8

4.9

4.2

0.2

4.9 4.9 2.6 2.2 1.8 2.0

4.4 . 0.5 3.6

4.4

7.6 6.5 2.5 0.9

% Recovered

33

5

15

6

8

41

42

10

49 49 26 22 18 33

44 50 36

44

76 65 25 23

• .... o

Fresh vesicular olivine pahoehoe with 4 ft. of long cores then fragmental spongy rock. 2" red ash bed at 194 ft. and 199 ft.

Vesicular olivine pahoehoe. Vesicular olivine pahoehoe. Vesicular olivine pahoehoe. Highly vesicular olivine pahoehoe with spongy

streaks. Driller had trouble here, although rock looks the same as above.

Vesicles in a dense pahoehoe that cores well. Partly weathered olivine basalt. Partly weathered dense pahoehoe with tiny feld-

o Depth length

189-199 ft. 8.5 ft. 199-209 5.9 209-219 7.2 219-220 0.2

220-225 225-227.5

227.5-230.5

4.3 1.7 0.3

spars but no olivine. 230.5-233 2.1 Par1y weathered cemented aa clinker, few vesicles. 233-236 Dense aa with scarce olivines. One piece core

18 11 long some thin clinker layers. 236-243.5 Upper part cores well. Base of the aa at 245 ft.;

then highly vesicular pahoehoe top of flow. 243.5-249 Highly vesicular olivine rich pahoehoe with

lower 4 ft. fairly dense with long cores. Same sol id rock as above. Sl1ckensi'des at 258

ft. possibly caused by driller.

249-254

254-259

3

, A little more vesicular and cores shorter.

6.6

2.5

4.9

4.4

1.6 Bottom of flow. Top has traces of red ash indicating contact

between lava flows. Olivine porphyry aa. Cores mostly long with large vesicles. Bottom 2.3 ft. is fragmental pahoehoe.

Trace of ash at 279 ft. No olivine in pahoehoe below it. Small pieces of core.

Vesicular pahoehoe withouto1ivines. Same as above but lower 2ft. broke into small

pieces. Same as above. Fairly massive vesicular aa with scarce large

olivine crystals; some clinker zones. Same as above. 6" of aa then entered highly vesicular pahoehoe. Highly vesicular pahoehoe with small scarce

01 ivines. Gray vesicular hard aa with no olivine crystals

with last 4 feet fairly dense rock with long cores. Bottoms at 359 ft.

18"'of very spongy pahoehoe lying on 3" OD baked red ash. Then 6" of vesicular pahoehoe basalt.

Highly vesicular pahoehoe with no olivines. Highly vesicular pahoehge with no olivines.

- 2 -

259-261

261-279

279-289 289-299

299-307 307-317.5

317.5-328 328-335.5

335.5 -342

342-349

349-359

359-366 366-375 375-384

13.4

3.5 3.0

4 4.1

5.4 4.2

3

5

7.7

2.2 4.6 7.0

% Recovered

85 59 72 20

86 68 10

84 100

88

46

98

88

80

75

35 30

50 39

51 76 46

71

77

31 51 78

... ' o Vesicular pahoehoe in long cores with trace of

ash and some weathering at 393 ft. Very vesicular pahoehoe flow about 2 ft. thick.

211 ash at bottom (395 ft.) Broken up pahoehoe with ash in the interstices

in upper foot and then vesicular to very dense basalt. One core 2 ft. long. No 01iv1nes:

Very dense basalt with continuous core but lower 2 ft. is breaking up due to vesicularity.

About 611 of same and then red clinker with red ash in interstices indicating another flow. This grades into a denser flow with c1inkery layers.

Same as above and in long cores. Dense aa to 430 ft. then 1 ft. of red ash with

cinders in it. Pahoehoe with large vesicles below ash.

Similar to above but last 3 ft. more vesicular. Has small clusters of feldspars and scattered large olivines.

Similar to above. Same as above. ~~re vesicular and breaks up. Hard pahoehoe with scattered large vesicles

without olivines. Same as above but vesicles are flatter. More vesicular pahoehoe. .' Same as above. Small fragments of clinker. Water table. Dense hard basalt, no olivines. Dense hard aa basalt. Dense hard aa basalt. Dense hard aa basalt which bottoms at 483 ft.

on cinder and chunks of vesicular pahoehoe with much interspersed red ash indicating top of flow and firefountains.

Upper 2 ft. same ash and vesicular chunks then clinker and blue vesicular aa. Htt water below the ashy layer and it rose to 477 ft.

Dense olivine aa Ail clinker. Vesicular pahoehoe some breaks up. Vesicular pahoehoe breaks up badly. Vesicular pahoehoe. Vesicular pahoehoe breaks up. Vesicular pahoehoe cores well except last foot

is clinker. Hard aa with vesicles •. Cores are continuous.

- 3 -

o Depth Length

384-394 ft. 9.0 ft.

394-395 0.5

395-397 1.2 397-404 4

404-411 6

411-419 5 419-426 6.7

426-434 7.2

434-444 7.6 444-452 5 452-455 2.6 455-457 . 0.9

457-460 2.6 460-465 4 465-471 2.6 471-474.5 3

474.5-477.3 0.4 477.3-478 0.5

478-479 0.9 479-780 0.7

480-489 6.8

489-494.5 5.8 494.5-502 6

502-504 0.6 504-514 6.6 514-516 1.3 516-518 1.9 518-523 2.2

523-528 5.2 528-533 5.2

% Recovered

90

50

50 57

86

71 96

89

76 52 87 45

87 80 43 86 14 71 90 70

76

100 80 30 66 65 90 44

100 100

· . o Same wi th c 11 nker a t bottom and new flow. Very vesicular olivine rich pahoehoe some

breaks up. Ves1cular 011vine pahoehoe. upper foot breaks up. Vesicular olivine pahoehoe.

Bottom of hole at 555

- 4 -

o %

~;~t~ length Recovered - 34 ft. 1 ft. 100

534-544 544-548 548-555

3.7 3.4 4.0

37 85 57

-, DOWAlD Form 71(1)

DESCRIPTION Vcr (~',! '/ ~" ~I~ '74 ",' Date of report ... !.?.~ .. !.~?.~ ........... Person filing report ..... ~9.~ .. ~~ ... ~~~ ......................................................... .

A. OWNER .~~~~ .. ~9.9E.S~~ .......... ~f~'E ~~.~~ .. h.<?~~ ... ~~.~~ ... ~~~~~ ...................... ISLAND .. ~~ ....................... . B. GENERAL LOCATION ...... ~.~ ... ~=~::-~?; ... !.?. ...... r(Waieht;i .. welJ,..-.J:.543.l::-.Q11 ............................................................... . C. DRILLING COMPANY .... ~~~.~ ... !?~~g.~~U;~.~ ................ .. D. TYPE OF RIG ....... Q?::!? ...................... DRILLING COMPLETED .. :~: .. ~~g.~.!~?~ DRILLER .. J~9.·~l...Jlen$.j,.9.b ............. .

month year * E. ELEVATION, msl: Top of drilling platform .. : .. 49.3 .•. 67 ........... ft. Bench mark and method used to determine

Height of drilling platform above ground surface ................ ft. elevation: .Counq .. datum.U::-:-.6 .. =:: .. 2SD..3.10 ......... . F. HOLE SIZE: ...... ~ ................. inch dia. to ..... ~~.Q ...... ft. below drilling platform.

q.P.PJ::Q~~ .... ~ ...... .inch dia. to .................. ft. below drilling platform . ........................... .inch dia. to .................. ft. below drilling platform. Schedule 40

G. CASING INSTALLED: .l.!.;z ...... in. I.D. x ............ in. wall solid section to ... !?'Q.Q ........ ft. below drilling platform. PVC Pipe )h ...... in. I.D. x ............ in. wall perforated section to .?QQ .......... ft. below drilling platform. Type of perforation .................................................................................................................................... .

H. ANNULUS: Grouted .... ::-::::: ....... ft. to ..... ::= ...... ft. below drilling platform. Gravel packed ..... ::~::: ...... ft. to .... ::.':":::-....... ft. below drilling platform.

I. PERMANENT PUMP INSTALLATION: • Pump type, make, serial no ............... ~~ ................................................................................. Capacity .................... g.p.m.

Motor type, H.P., .voltage, r.p.m ...................................................................................................................................................... .. Depth of pump intake setting ................ ft. below ................................................................ which elevation is ............... .ft. Depth of bottom of airline ................ ft. below .................................................................... which elevation is ................ ft.

above MSL HYDROLOGY J. INITIAL WATER LEVEL .. tl~.!.~~L.ft. tre1uW"'ctrttttng"ptatfOIiIi. Date of measurement. ...... 9. .. s.ept.! ... ;t..9.!.~ ........... _ ... K. INITIAL CHLORIDE: .................. ppm, total depth of well .................. ft. below drilling platform ....................................... .

Sampling Date L. PUMPING TESTS: Reference point CR.P.) used: .................. which elevation is ................ ft.

Date .............. ~ne................................... Date ............................................................ ' Start water level ................................... ft. below R. P. Start water level ........................................... ft. below R. P. End water level ..................................... ft. below R. P. End water level ............................................. ft. below R. P. Depth of well ......................................... ft. below R. P. Depth of well ................................................. ft. below R. P.

Elapsed Rate Draw- CI- Temp. Elapsed Rate Draw- CI- Temp. Time (hours) (gpm) down (ft.) (ppm) of Time (hours) (gpm) down (ft.) (ppm) "F

.............. to .............. .............. .............. .............. .............. .. ............ to ..................................................................... .

.............. to .................................................................................... to ..................................................................... .

.............. to .................................................................................... to ..................................................................... .

.............. to .............. .............. .............. .............. .............. . ............. to ..................................................................... .

.............. to .............. .............. .............. .............. .............. . ............. to ..................................................................... .

.............. to .............. .............. .............. .............. .............. . ............. to ..................................................................... .

SUBSURFACE FORMATION M. DRILLER'S LOG:

Water level Water level Depth, ft. Rock Description & Remarks ft. Depth, ft. Rock Description & Remarks ft .

.............. to .............. .................................................... .............. . ............. to ............................................................................... .

.............. to ............... See .. attacheCl .. 1og........... .............. . ............. to ............................................................................... _

.............. to .............. .by .. H.. ... T •.. Stearns........... .............. . ............. to ............................................................................... .

.............. to .............. .................................................... .............. . ............. to .............................................................................. ..

.............. to .............. .................................................... .............. . ............. to .............................................................................. ..

.............. to .............. .................................................... .............. . ............. to ............................................................................... .

.............. to .............. .................................................... .............. . ............. to .......... : ................................................................... ..

.............. to '.............. .................................................... .............. . ............. to ............................................................................... .

.............. to .............. .................................................... .............. . ............. to .............................................................................. ..

.............. to .............. .................................................... .............. . ............. to .............................................................................. ..

.............. to .............................................................................................. to .............................................................................. ..

* N. REMARKS: .... ~~~~.??: .. ~.~ .. ~p. .. ?~ .. ~ .. ~~~ .............................................................................................................. .

FOR DRILLER'S USE

Job Name ............................. .

Job No .................................... .

INSTRUCTIONS: Send three(3) copies to: Manager-Chief Engineer, Division of Water and land Development, P. O. Box 373, Honolulu, Hawaii 96809.

REFERENCES: Chapter 178, entitled "Artesian Wells, Generally," HRS, as amended by Act 123 SlH 1970. Honolulu Board of Water SUpply, "Rules and Regulations Providing for the Protection, Development and Conservation of Water Resources." Sec't 8-105(j). "Powers, Duties and Functions of the Board," Charter of the City and County of Honolulu, 1959.

FOR OFFICIAL USE Latitude .. ~9. .. ?-t.~ ..... ~1 Longitude ~.?~ ... ~~ ... ~P1

5431-01 Well No ............................... .

o o rJ~ S" 4"3 { - 0 I

Test hole "B" at Waiehu, Maui (USGS Drilled for Wailuku Sugar Co. and A & B Co. Elevation: 493.67 ft.

) 200 54' 37" North Latitude 156 0 31' 05" West Longitude

Driller: Continental Drilling Co. Date Started: June 12, 1974 Diameter: 3 inches

Date Completed: August 8, 1974 Casing: 1 1/2" PVC Length: 555 feet (40 ft. perforated)

Formation (Logged by H. T. Stearns, Sept. 7, 1974) Water level: 16.60 ft. above MSL

Water level recorder installed Aug. 10, 1974

Red soil. N..(-'!arly completely decomposed cobbles (older

i!lluvium). Div~rse weathered fragments of rock probably

cobbles. Thr~e pieces of fine grained basalt probably

boul d,~rs. D~ep1y weathered basalt, almost soil with

white specks. Deeply weathered basalt, almost soil vlith

white specks. Deeply weathered basalt, almost soil with

\'1hite specks. Deeply weathered pahoehoe, almost soil with

white specks. DeeplY weathered pahoehoe, almost soil with

white specks. Deeply weathered pahoehoe beginning to core. Deeply weathered pahoehoe beginning to core. Deeply weathered pahoehoe, olivines recognizable. Deeply weathered pahoehoe. Partly weathered pahoehoe. Slightly weathered pahoehoe, 2 1/2 ft. dense

core with highly vesicular weathered basalt. Partly weathered olivine .feldspar pahoehoe. More weathered olivine feldspar pahoehoe. Partly weathered olivine feldspar pahoehoe with

some small cores. Partly weathered olivine feldspar pahoehoe with

larger cores. Fresher olivine pahoehoe basalt, very vesicular. Fresher olivine pahoehoe basalt, very vesicular. Fresher olivine pahoehoe basalt, very vesicular.

- 1 -

Depth 0-3

3-16

16-24

24-34

34-44

44-56

56-66

66-68

68-78 78-88 88-98 98-108

108-118 118-124

124-134 134-135 135-145

145-155

155-165 155-175 175-185 185-189

Length 1.0

0.6

1.2

0.6

0.8

4.9

4.2

0.2

4.9 4.9 2.6 2.2 1.8 2.0

4.4 0.5 3.6

4.4

7.6 6.5 2.5 0.9

% Recovered

33

5

15

6

8

41

42

10

49 49 26 22 18 33

44 50 36

44

76 65 25 23

o Fresh vesicular olivine pahoehoe with 4 ft. of

long cores then fragmental spongy rock. 2" red ash bed at 194 ft. and 199 ft.

Vesicular olivine pahoehoe. Vesicular olivine pahoehoe. Vesicular olivine pahoehoe. Highly vesicular olivine pahoehoe with spongy

streaks. Driller had trouble here, although rock looks the same as above.

Vesicles in a dense pahoehoe that cores well. Partly weathered olivine basalt. Partly weathered dense pahoehoe with tiny feld-

o Depth

189-199 199-209 209-219 219-220

220-225 225-227.5

227.5-230.5

spars but no 01 ivine. 230.5-233 Parly weathered cemented aa clinker, few vesicles. 233-236 Dense aa with scarce olivines. One piece core

18" long some thin clinker layers. 236-243.5 Upper part cores well. Base of the aa at 245 ft.;

then highly vesicular pahoehoe top of flow. 243.5-249 Highly vesicular olivine rich pahoehoe with

lower 4 ft. fairly dense with long cores. Same solid rock as above. Slickensides at 258

ft. possibly caused by driller. A little more vesicular and cores shorter.

Bottom of flow. Top has traces of red ash indicating contact

between lava flows. Olivine porphyry aa. Cores mostly long with large vesicles. Bottom 2.3 ft. is fragmental pahoehoe.

Trace of ash at 279 ft. No olivine in pahoehoe below it. Small pieces of core.

Vesicular pahoehoe without olivines. Same as above but lower 2 ft. broke into small

pieces. Same as above. Fairly massive vesicular aa with scarce large

olivine crystals; some clinker zones. Same as above. 6" of aa then entered highly vesicular pahoehoe. Highly vesicular pahoehoe with small scarce

olivines. Gray vesicular hard aa with no olivine crystals

with last 4 feet fairly dense rock with long cores. Bottoms at 359 ft.

18";of very spongy pahoehoe lying on 3" on baked red ash. Then 6" of vesicular pahoehoe basalt ..

Highly vesicular pahoehoe with no olivines. Highly vesicular pahoehoe with no olivines.

- 2 -

249-254

254-259

259-261

261-279

279-289 289-299

299-307 307-317 .5

317.5-328 328-335.5

335.5 -342

342-349

349-359

359-366 366-375 375-384

Length

8.5 5.9 7.2 0.2

4.3 1.7 0.3

2.1 3

6.6

2.5

4.9

4.4

1.6

13.4

3.5 3.0

4 4.1

5.4 4.2

3

5

7.7

2.2 4.6 7.0

% Recovered

85 59 72 20

86 68 10

84 100

88

46

98

88

80

75

35 30

50 39

51 76 46

71

77

31 51 78

, o Vesicular pahoehoe in long cores with trace of

ash and some weathering at 393 ft. Very vesicular pahoehoe flow about 2 ft. thick.

211 ash at bottom (395 ft.) Broken up pahoehoe with ash in the interstices

in upper foot and then vesicular to very dense basalt. One core 2 ft. long. No olivines.

Very dense basalt with continuous core but lower 2 ft. is breaking up due to vesicu1arity.

About 611 of same and then red clinker with red ash in interstices indicating another flow. This grades into a denser flow with c1inkery layers.

Same as above and in long cores. Dense aa to 430 ft. then 1 ft. of red ash with

cinders in it. Pahoehoe with large vesicles below ash.

Similar to above but last 3 ft. more vesicular. Has small clusters of feldspars and scattered large olivines.

Similar to above. Same as above. More vesicular and breaks up. Hard pahoehoe with scattered large vesicles

without olivines. Same as above but vesicles are flatter. More vesicular pahoehoe. Same as above. Small fragments of clinker. Hater table. Dense hard basalt, no olivines. Dense hard aa basalt. Dense hard aa basalt. Dense hard aa basalt which bottoms at 483 ft.

on cinder and chunks of vesicular pahoehoe with much interspersed red ash indicating top of flow and firefountains.

Upper 2 ft. same ash and vesicular chunks then clinker and blue vesicular aa. Htt water below the ashy layer and it rose to 477 ft.

Dense olivine aa Aa .clinker. Vesicular pahoehoe some breaks up. Vesicular pahoehoe breaks up badly. Vesicular pahoehoe. Vesicular pahoehoe breaks up. Vesicular pahoehoe cores well except last foot,

is clinker. Hard aa with vesicles. Cores are continuous.

- 3 -

o Depth

384-394

394-395

395-397 397-404

404-411

411-419 419-426

426-434

434-444 444-452 452-455 455-457

457-460 460-465 465-471 471-474.5

474.5-477.3 477 .3-478

478-479 479-780

480-489

489-494.5 494.5-502

502-504 504-514 514-516 516-518 518-523

523-528 528-533

Length

9.0

0.5

1.2 4

6

5 6.7

7.2

7.6 5

2.6 0.9

2.6 4

2.6 3

0.4 0.5 0.9 0.7

6.8

5.8 6

0.6 6.6 1.3 1.9 2.2

5.2 5.2

% Recovered

90

50

50 57

86

71 96

89

76 52 87 45

87 80 43 86 14 71 90 70

76

100 80 30 66 65 90 44

100 100

o Same with clinker at bottom and new flow. Very vesicular olivine rich pahoehoe some

breaks up. Vesicular olivine pahoehoe, upper foot breaks up. Vesicular olivine pahoehoe.

Bottom of hole at 555

- 4 -

o Depth 533-534

534-544 544-548 548-555

% Length Recovered

1 100

3.7 37 3.4 85 4.0 57