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