## 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: G1402921

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: KLS

Total suspended solids 2 1 mg/L 1 02/25/2014 14:21

Inorganic Non-Metals SM 2540 C Analyst: KLS
Total dissolved solids 28000 20 mg/L 1 02/25/2014 14:21

Indicator Organic Parameters SM 5210 B Analyst: MMR BOD 5-day < 2 2 mg/L 1.5 02/26/2014 06:41

Inorganic Non-Metals USGS I-1187-85 Analyst: CLS
Chloride 15800 1000 mg/L 200 03/03/2014 10:47

Inorganic Metals EPA 200.8 Analyst: RXS Selenium, dissolved 0.049 0.005 mg/L 5 03/03/2014 11:38

Inorganic Metals EPA 200.8 Analyst: RXS
Arsenic 0.002 0.001 mg/L 1 02/27/2014 12:04
Chromium < 0.005 0.005 mg/L 1 02/27/2014 12:04
Nickel 0.0055 0.0005 mg/L 1 02/27/2014 12:04
Selenium 0.080 0.001 mg/L 1 02/26/2014 13:19

Inorganic Metals EPA 200.7 Analyst: GMG Iron, dissolved < 0.05 0.05 mg/L 1 02/26/2014 19:02

Inorganic Metals SM 3112B Analyst: RLD Mercury < 0.0002 0.0002 mg/L 1 02/27/2014 09:10

Inorganic Metals EPA 200.7 Analyst: GMG
Aluminum < 0.1 0.1 mg/L 1 02/27/2014 14:46 Beryllium < 0.001 0.001 mg/L 1 02/27/2014 14:46
Boron 274 2.50 mg/L 50 02/27/2014 14:16
Cadmium 0.003 0.002 mg/L 1 02/27/2014 14:46 Copper 0.02 0.01 mg/L 1 02/27/2014 14:46



# 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: G1402921 Project: Keystone 611 W Sampled By: NRG
Lab ID: G1402921-001 Collection Date: 02/24/2014 09:15
Matrix: Aqueous Received Date: 02/24/2014 17:01
Analyses Result QL Q Units DF Date Analyzed



### Page 2 of 5Iron < 0.05 0.05 mg/L 1 02/27/2014 14:46

Lead < 0.02 0.02 mg/L 1 02/27/2014 14:46 Manganese 18.8 0.01 mg/L 1 02/27/2014 14:46
Silver < 0.005 0.005 mg/L 1 02/27/2014 14:46
Zinc < 0.01 0.01 mg/L 1 02/27/2014 14:46

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

Indicator Organic Parameters EPA 1664 Analyst: MTM
Oil & Grease < 5 5 mg/L 1 02/28/2014 08:23



# 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: G1402921 Project: Keystone 611 W Sampled By: NRG
Lab ID: G1402921-001 Collection Date: 02/24/2014 09:15
Matrix: Aqueous Received Date: 02/24/2014 17:01
Analyses Result QL Q Units DF Date Analyzed



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

Total dissolved solids 30900 100 mg/L 5 02/25/2014 14:21

Physical Tests SM 2540D Analyst: KLS Total suspended solids 6710 100 mg/L 20 02/25/2014 14:21

Indicator Organic Parameters SM 5210 B Analyst: MMR BOD 5-day 11 3 mg/L 3 02/26/2014 06:41

Inorganic Metals USGS I-1230-85 Analyst: MLR
Hexavalent Chromium < 0.020 0.020 mg/L 1 02/24/2014 17:43

Inorganic Non-Metals USGS I-1187-85 Analyst: CLS
Chloride 18500 1000 mg/L 200 03/03/2014 10:47

Inorganic Metals EPA 200.7 Analyst: GMG Iron, dissolved < 0.05 0.05 mg/L 1 02/26/2014 19:07 Selenium, dissolved 0.31 0.02 mg/L 1 02/26/2014 19:07

Inorganic Metals SM 3112B Analyst: RLD Mercury < 0.100 0.100 mg/L 500 02/27/2014 09:15

Inorganic Metals EPA 200.7 Analyst: GMG
Aluminum 38.5 1.0 mg/L 1 02/26/2014 17:16
Arsenic 0.27 0.20 mg/L 1 02/26/2014 17:16 Beryllium < 0.010 0.010 mg/L 1 02/26/2014 17:16
Boron 394 5.00 mg/L 10 02/27/2014 14:08
Cadmium 0.058 0.020 mg/L 1 02/26/2014 17:16
Chromium 0.30 0.10 mg/L 1 02/26/2014 17:16 Copper 0.22 0.10 mg/L 1 02/26/2014 17:16
Iron 231 0.50 mg/L 1 02/26/2014 17:16
Lead < 0.20 0.20 mg/L 1 02/26/2014 17:16 Manganese 377 0.10 mg/L 1 02/26/2014 17:16



# 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: G1402921 IWT Influent Special Project: Keystone 611 W Sampled By: NRG
Lab ID: G1402921-002 Collection Date: 02/24/2014 09:00
Matrix: Aqueous Received Date: 02/24/2014 17:01
Analyses Result QL Q Units DF Date Analyzed



### Page 4 of 5Nickel 2.71 0.10 mg/L 1 02/26/2014 17:16

Selenium 1.32 0.20 mg/L 1 02/26/2014 17:16
Silver < 0.050 0.050 mg/L 1 02/26/2014 17:16
Zinc 0.93 0.10 mg/L 1 02/26/2014 17:16

Trivalent Chromium EPA 200.7/I-1230-85 Analyst: LAN
Trivalent Chromium 0.30 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 03/03/2014 17:30



# 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: G1402921 IWT Influent Special Project: Keystone 611 W Sampled By: NRG
Lab ID: G1402921-002 Collection Date: 02/24/2014 09:00
Matrix: Aqueous Received Date: 02/24/2014 17:01
Analyses Result QL Q Units DF Date Analyzed



### Page 5 of 5