HYDRO20781

• Permit No: C1981032
• IBM Index Class Name: Hydrology
• Doc Date: 5/27/1981
• From: NORTHERN COAL CO
• To: MLR
• Permit Index Doc Type: CORRESPONDENCE
• Media Type: D
• Archive: No

race r,
..~ .
~I .'
! Northern
{ Coal
Company
~, CURTIS CREEK SUBSIDENCE MONUMENTS
~ First wee k of weekly monitoring.Rienau No. 2, ls[ East, 2.-Right Face is
278 feet from Curtis Creek when monitored for elevations.
?fONUMENT ll ELEVATIONS
8 6,905.43 ~'
10 6,905.90 "
11 6,906.01 ''
I
~
12
6,910.53 -
13 6,908.90 `~
14 6,904.20 ~
! 15 6,900.09 ''
16 6,907.66 `'
17 6,908.33 ",
II 18 6,909.07 "
I
NOTES:
1) All control for these coordinates are based on points MC-06

~
(295
,990.91;'1, 344,260.86)~and ?1C- ~
J (291,166.52," 1,343,760.01)
of a previous survey done by E 6 C Consulting and Intrasearch
Inc. respectively.
~' 2) Vert ical control for mo~uments are based on the U.S.G.S. Bench
Mark s H-384 (6,927.535) and G-384 (6,831.089):'
Survey done on January 22, 1981.
Notes are recorded in Book No. 32 on pages 22 through 25.
JB/mjb
pc: File