2012-04-25_HYDROLOGY - M2002004

• Permit No: M2002004
• IBM Index Class Name: HYDROLOGY
• Doc Date: 4/25/2012
• Doc Name: First Quarter 2012 Groundwater Monitoring Report
• From: GCC RIO GRANDE
• To: DRMS
• Type & Sequence: AM1
• Email Name: TC1
• Media Type: D
• Archive: No

Analyte
1 Method I Units
MW -002
MW -003
MW -004
DUP -01
RADIOCHEMISTRY
Radium 226 **
SM 7500 Ra -B
pCi /L
2.6 +/- 0.8
3.5 +/- 0.8
3.0 +/-
.7
2.0
+/-
0.6
Radium 228 **
EPA Ra -05
pCi /L
2.1 +/- 0.8
1.0 +/ -0.8
13.0 +/-
2.0
3.3
+/-
0.9
FIELD PARAMETERS
pH
Probe
pH
7.40
7.10
7.15
--
Conductivity
Probe
us /Cm
2,540
4,190
3,340
--
Temperature
Probe
°C
10.5
9.4
10.2
--
= MN NM I OM MN NM MN M • NM N MI N
Table 1. Result of Semi- Annual Monitoring, GCC Rio Grande, Inc., Pueblo Cement Plant. Sampling conducted March 20, 2012.
Analyte 1 Method ( Units 1 MW -002 1 MW -003 1 MW -004 DUP-01 1 EB -01
GENERAL CHEMISTRY
Sulfate *
Total Dissolved Solids
(1'L)S) *
E300.0
SM 2540C
mg /L
mg /L
1,200
2,150
1,860
3,650
1,640
3,040
1,180
2,130
<0.50
<10
* DRMS Numeric Standards for Sulfate and TDS are 1,950 mg/L and 2,630 mg/L, respectively.
Notes — TDS has a secondary standard of 500 mg/L. Sulfate has a secondary standard of 250 mg/L. All TDS and sulfate results exceed the
secondary standards. Shaded results for TDS indicate exceedence of DRMS Numeric Protection Levels.
** DRMS Numeric Standards for Radium 226 and Radium 228 are 23.5 pCi/L and 12.3 pCi/L mg/L, respectively.
Shaded result for Radium 228 indicates exceedence of DRMS Numeric Protection Level.
Notes — Sulfate and TDS analyses performed by Accutest Laboratory- Wheatridge, Colorado.
Radiochemistry sub - contracted to Hazen Research — Golden, Colorado.
pCi/L = picoCuries per liter, mg/L = milligrams per liter, us /Cm = microsiemens per centimeter
DUP -01 = Blind duplicate of primary groundwater sample MW -002