Technical Service Report Sasol North America Inc.

 Research & Development 

2201 Old Spanish Trail 

TSR No. R&D ENV 10-004 01-10 Westlake, Louisiana 70669

To: Library 

From: Geoff Russell 

Date: May 19, 2010 

Title: ALFOTERRA® Surfactant: Environmental Fate and Effects 

Objective: Determine aquatic toxicity of water sample from Porous Pot System, DOC 

Die-Away, and ALFOTERRA® 23-4S Surfactant. 

Results: Acute 96-hour aquatic toxicity testing on fathead minnow is outsourced to 

Environmental Enterprise USA, Slidell LA. The table below summarizes the results for 

10 reports 

Results of fathead minnow 96hr acute toxicity test

Sample Description Environmental 

Enterprise USA 

Sample ID 

Survival NOEC % Survival LOEC % LC50 % 

(95% Confidence 

Interval) 

PPS Blank 

Influent Feed 

Q-642-09-1336-38-1 12% 25% 14.7 % 

(12.4% - 17.5%) 

PPS AES 

 Influent Feed 

Q-643-09-1336-38-2 3.0% 6.0% 5.47% 

(4.91% - 6.10%) 

PPS ALFO 23-4S 

Influent Feed 

Q-644-09-1336-38-3 6.0% 12.0% 

 

9.48% 

(8.28% - 10.9%) 

AES Neat 

 (40mg/L active)

Q-645-09-1336-38-4 6.0% 

(2.4mg/L) 

12.0% 

(4.8 mg/L) 

13.8% (5.52mg/L)

(12.3% - 15.5%) 

ALFO 23-4S 

(40mg/L active) 

Q-646-09-1336-38-5 3.0% 

(1.2mg/L) 

6.0% 

(2.4mg/L) 

7.76% (3.10mg/L)

(6.64% - 9.08%) 

PPS Blank Effluent Q-647-09-1336-38-6 100% >100% >100% 

(NA) 

PPS AES Effluent Q-648-09-1336-38-7 100% >100% >100% 

(NA) 

PPS ALFO 23-4S 

Effluent 

Q-649-09-1336-38-8 100% >100% >100% 

(NA) 

ALFO 23-4S Q-715-09-1336-58-2 6% 12% 8.8% (4.4mg/L) 

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R&D ENV 10-004 01-10 

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Die-Away 

(50mg/L) 0-day 

(3.0mg/L) (6.0mg/L) (8.0% - 9.7%) 

ALFO 23-4S 

Die-Away 

(50mg/L) 28-day 

Q-716-09-1336-58-1 100% >100% >100% 

NA 

Note: numbers highlighted in bold are Sasol NA notebook numbers. Concentrations in red are 

calculated as mg/L in the endpoint dilution value. 

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