McNULTY WATER - WELL ELEVATIONS

===== For McNulty Water Assn. By N J Thompson === Sept 2000 e:\ww\water\2000\wellelev.htm ===

===== SUMMARY: Ground water appears to exit free-flow at the Columbia RIVER.

Millard Wells are in RIVER LEVEL WATER. (Close to River ( = +10 MSL))

Stone Road new well is at a level a bit higher, assumed to be upslope in the RIVER WATER LEVEL layer..

Blaha Well is in McNULTY CREEK LEVEL WATER. (Bachelor Flat Road and Blaha Road = +155 MSL)

===== MILLARD ROAD, Ground Elevation - 170 feet MSL =====

10 " Well Depth

Bottom MSL

Pump Depth

Pump MSL

Pumping Height

Pumping MSL

Resting Heights

Resting MSL

405

-235

350

-180

58

-122

212

+32

           

173

-7

 

 

 

 

 

 NOTE *

-184 *

-14 *

===== STONE ROAD, Ground elevation = 224 Ft MSL =====

Well Depth

Bottom MSL

Pump Depth

Pump MSL

Pumping Height

Pumping MSL

Resting Heights

Resting MSL

500

-276 ft

-400

-176

171

-5 ft

285

+109

 

 

 

 

 

 

250

+74

===== BLAHA ROAD, Ground Elevation = 356 feet MSL : Tank Water Level = 386 Ft MSL =====

Well Depth

Bottom MSL

Pump Depth

Pump MSL

Pumping Height

Pumping MSL

Resting Heights

Resting MSL

 

 

280

+76 ft

30

+106

60

+136

 

 

 

 

 

 

79

+155

===== ROBINETTE TANK: Ground Elevation = 450 Ft MSL. Water surface level = 480 Ft MSL

Robinette levels calculated as 40 PSI rise at the Fairgrounds booster. 386+(40 * 2.31)=480

Notes: Millard 10 inch well: Site elevation from map. Well & pump depths from log.

* means from the video in July 1994. -184 is down from the top.

Pressure at Millard should be (386-170)/2.31= 94 psi. Actual gage reads 100 psi.

Notes: Stone Road Wells: Elevation calculated as 70 psi , thus 162 feet below Blaha water levels = 386 - 162 = 224 MSL

Notes: Blaha Well & Tanks: Site elevation from Fred Bolton. Air hose length from note on gauge

OTHER Notes: MSL means above or below MEAN SEA LEVEL. Columbia River at St Helens = + 10 Ft MSL

Hwy 30 @ Railroad Station = 99ft MSL. Hwy 30 at Millard Rd = 65 Ft MSL

BOOSTER elevation is 280 ft MSL. McNulty Millard road building = 170 Ft. MSL

Above elevations from St. Helens Quadrangle map, 7.5 Minute Series. Tanks are assumed to be filled 30 feet.

Measuring air line is assumed to end at the pump. Heights are thus above pump level.

Resting heights change irregularly as much as 150 ft. Selected or typical heights are shown.

NOTE: Most of this document was done in 1995. Not all has been re-scrutinized. Thompson