## No problems were encountered during analysis of this workorder, except if noted in this report. 2005 N. Center Ave. Somerset PA 15501

814-443-1671 814-445-6666 FAX:814-445-6729

Client: GenOn ENERGY INC. - KEYSTONE STATION 

## CASE NARRATIVE Project: Keystone 611 W
Lab Order: G1402614

Legend: ND - Not Detected at the Quantitation Limit S - Spike Recovery outside accepted recovery limits
J - Indicates an estimated value R - RPD outside accepted recovery limits U - The analyte was not detected at or above the listed E - Value above quantitation range concentration, which is below the laboratory quantitation limit ** - Value exceeds Action Limit B - Analyte detected in the associated Method Blank H - Method Hold Time Exceeded
Q - Qualifier QL - Quantitation Limit DF - Dilution Factor MCL - Contaminant Limit



### Page 1 of 5Physical Tests SM 2540D Analyst: MBG

Total suspended solids < 1 1 mg/L 1 02/18/2014 13:08

Inorganic Non-Metals SM 2540 C Analyst: MBG
Total dissolved solids 29200 100 mg/L 5 02/18/2014 16:24

Indicator Organic Parameters SM 5210 B Analyst: MMR BOD 5-day < 2 2 mg/L 1.5 02/19/2014 08:15

Inorganic Non-Metals USGS I-1187-85 Analyst: SEF
Chloride 15400 1000 mg/L 200 02/18/2014 13:09

Inorganic Metals EPA 200.8 Analyst: RXS Selenium, dissolved 0.048 0.005 mg/L 5 03/03/2014 12:30

Inorganic Metals EPA 200.8 Analyst: RXS
Arsenic 0.002 0.001 mg/L 1 02/18/2014 21:27
Chromium < 0.005 0.005 mg/L 1 02/18/2014 21:27
Nickel 0.0048 0.0005 mg/L 1 02/18/2014 21:27
Selenium 0.075 0.001 mg/L 1 02/18/2014 21:27

Inorganic Metals EPA 200.7 Analyst: GMG Iron, dissolved < 0.05 0.05 mg/L 1 02/19/2014 13:39

Inorganic Metals SM 3112B Analyst: RLD Mercury < 0.0002 0.0002 mg/L 1 02/20/2014 09:02

Inorganic Metals EPA 200.7 Analyst: GMG
Aluminum < 0.1 0.1 mg/L 1 02/19/2014 13:37 Beryllium < 0.001 0.001 mg/L 1 02/19/2014 13:37
Boron 289 2.50 mg/L 50 02/20/2014 11:46
Cadmium 0.003 0.002 mg/L 1 02/19/2014 13:37 Copper < 0.01 0.01 mg/L 1 02/19/2014 13:37



# Laboratory Results

2005 N. Center Ave. Somerset PA 15501

814-443-1671 814-445-6666 FAX:814-445-6729

Client: GenOn ENERGY INC. - KEYSTONE STATION Client Sample ID: Outfall 101
Lab Order: G1402614 Project: Keystone 611 W Sampled By: NRG
Lab ID: G1402614-001 Collection Date: 02/17/2014 09:15
Matrix: Aqueous Received Date: 02/17/2014 16:30
Analyses Result QL Q Units DF Date Analyzed



### Page 2 of 5Iron < 0.05 0.05 mg/L 1 02/19/2014 13:37

Lead < 0.02 0.02 mg/L 1 02/19/2014 13:37 Manganese 22.0 0.01 mg/L 1 02/19/2014 13:37
Silver < 0.005 0.005 mg/L 1 02/19/2014 13:37
Zinc < 0.01 0.01 mg/L 1 02/19/2014 13:37

Trivalent Chromium EPA 200.7/I-1230-85 Analyst: LAN
Trivalent Chromium < 0.02 0.02 mg/L 1 02/21/2014 00:00

Indicator Organic Parameters EPA 1664 Analyst: MCO
Oil & Grease < 5 5 S mg/L 1.01 02/18/2014 17:48
NOTES: S - Spike recovery indicates a possible matrix effect. The method is in control as indicated by the LCS. 

# Laboratory Results

2005 N. Center Ave. Somerset PA 15501

814-443-1671 814-445-6666 FAX:814-445-6729

Client: GenOn ENERGY INC. - KEYSTONE STATION Client Sample ID: Outfall 101
Lab Order: G1402614 Project: Keystone 611 W Sampled By: NRG
Lab ID: G1402614-001 Collection Date: 02/17/2014 09:15
Matrix: Aqueous Received Date: 02/17/2014 16:30
Analyses Result QL Q Units DF Date Analyzed



### Page 3 of 5Inorganic Non-Metals SM 2540 C Analyst: MBG

Total dissolved solids 31900 100 mg/L 5 02/18/2014 16:24

Physical Tests SM 2540D Analyst: MBG Total suspended solids 28400 100 mg/L 20 02/18/2014 13:08

Indicator Organic Parameters SM 5210 B Analyst: MMR BOD 5-day 15 6 mg/L 6 02/19/2014 08:15

Inorganic Metals USGS I-1230-85 Analyst: MLR
Hexavalent Chromium < 0.020 0.020 mg/L 1 02/17/2014 17:15

Inorganic Non-Metals USGS I-1187-85 Analyst: SEF
Chloride 15600 1000 mg/L 200 02/18/2014 13:09

Inorganic Metals EPA 200.7 Analyst: GMG Iron, dissolved < 0.05 0.05 mg/L 1 02/19/2014 13:42 Selenium, dissolved 0.07 0.02 mg/L 1 02/19/2014 13:42

Inorganic Metals SM 3112B Analyst: RLD Mercury 0.685 0.100 mg/L 500 02/20/2014 09:03

Inorganic Metals EPA 200.7 Analyst: GMG
Aluminum 402 1.0 mg/L 1 02/26/2014 16:49
Arsenic 2.75 0.20 mg/L 1 02/26/2014 16:49 Beryllium 0.057 0.010 mg/L 1 02/26/2014 16:49
Boron 377 5.00 mg/L 10 02/27/2014 14:05
Cadmium 0.036 0.020 mg/L 1 02/26/2014 16:49
Chromium 2.78 0.10 mg/L 1 02/26/2014 16:49 Copper 1.77 0.10 mg/L 1 02/26/2014 16:49
Iron 1960 0.50 mg/L 1 02/26/2014 16:49
Lead 1.06 0.20 mg/L 1 02/26/2014 16:49 Manganese 335 0.10 mg/L 1 02/26/2014 16:49



# Laboratory Results

2005 N. Center Ave. Somerset PA 15501

814-443-1671 814-445-6666 FAX:814-445-6729

Client: GenOn ENERGY INC. - KEYSTONE STATION Client Sample ID: FGD Influent
Lab Order: G1402614 IWT Influent Special Project: Keystone 611 W Sampled By: NRG
Lab ID: G1402614-002 Collection Date: 02/17/2014 09:00
Matrix: Aqueous Received Date: 02/17/2014 16:30
Analyses Result QL Q Units DF Date Analyzed



### Page 4 of 5Nickel 4.26 0.10 mg/L 1 02/26/2014 16:49

Selenium 4.45 0.20 mg/L 1 02/26/2014 16:49
Silver < 0.050 0.050 mg/L 1 02/26/2014 16:49
Zinc 5.62 0.10 mg/L 1 02/26/2014 16:49

Trivalent Chromium EPA 200.7/I-1230-85 Analyst: LAN
Trivalent Chromium 2.78 0.02 mg/L 1 02/28/2014 00:00

Indicator Organic Parameters EPA 1664 Analyst: MCO
Oil & Grease < 18 18 mg/L 3.57 02/18/2014 16:38



# Laboratory Results

2005 N. Center Ave. Somerset PA 15501

814-443-1671 814-445-6666 FAX:814-445-6729

Client: GenOn ENERGY INC. - KEYSTONE STATION Client Sample ID: FGD Influent
Lab Order: G1402614 IWT Influent Special Project: Keystone 611 W Sampled By: NRG
Lab ID: G1402614-002 Collection Date: 02/17/2014 09:00
Matrix: Aqueous Received Date: 02/17/2014 16:30
Analyses Result QL Q Units DF Date Analyzed



### Page 5 of 5