2018 Annual Water Use Report

Section 1: Facility Information

Registrant: Stepan Company Facility ID: 0358-0002
Facility Name: Stepan Company Facility Type: Industrial
County: New Hanover Sub-Basin: Cape Fear River (02-3)
Mailing Address: 4600 Highway 421 N
Wilmington, NC 28401		 Email: [email protected]
Contact Person: christian omoseni Title: Environmental Engineer
Phone: 9102002387 Fax: none

Section 2: Withdrawal Information

2-A. Average daily withdrawal and maximum day withdrawal by month in million gallons per day (MGD)

Month # of Days
Used		 Average Daily
Withdrawal (MGD)		 Maximum Day
Withdrawal (MGD)		 Month # of Days
Used		 Average Daily
Withdrawal (MGD)		 Maximum Day
Withdrawal (MGD)
Jan 31 .833 .833 Jul 31 .678 .678
Feb 28 .844 .844 Aug 31 .875 .875
Mar 31 .838 .838 Sep 29 .625 .625
Apr 30 .754 .754 Oct 31 .382 .382
May 31 .807 .807 Nov 30 .456 .456
Jun 30 .448 .448 Dec 30 .742 .742

2-B. Source Information - Please complete one row for each water withdrawal source. If any of your source information was imported from a previous year, please make sure you click edit and fill in the information left blank that is needed for the 2018 reporting year.

Source Name Source Type Average Daily Days Used Pumping Capacity (MGD)
AA Well .179 272 0.500
H2 Well .138 329 0.288
0G2 Well .305 343 0.432
C Well .211 233 0.432

Section 3: Discharge Information

3-A. Average daily discharge and maximum day discharge by month in million gallons per day (MGD)

Month # of Days
Discharged		 Average Daily
Discharge (MGD)		 Maximum Day
Discharge (MGD)		 Month # of Days
Discharged		 Average Daily
Discharge (MGD)		 Maximum Day
Discharge (MGD)
Jan 31 .72 1.16 Jul 31 1.09 1.69
Feb 28 .72 1.2 Aug 31 1.13 1.42
Mar 31 .86 1.74 Sep 30 1.25 3.99
Apr 30 1.05 1.84 Oct 31 2.05 2.97
May 31 1.06 2.19 Nov 30 1.55 1.55
Jun 30 1.12 1.71 Dec 31 1.55 1.98

3-B. Please complete one row for each discharge method. If any of your discharge information was imported from a previous year, please make sure you click edit and fill in the information left blank that is needed for the 2018 reporting year.

Identifier or Permit Number Discharge Type Average Daily Days Discharged Discharge Capacity
NC0001112- 002 Surface Water 0.16 307 0.500
NC0001112- 001 Surface Water 1.05 365

Section 4: Sub-Basin Transfer Information

Complete this section only if you withdraw or purchase water that is not returned to the sub-basin from which it was withdrawn.

4-A. Please complete one row for each transfer of surface water from one sub-basin to another. If any of your transfer information was imported from a previous year, please make sure you click edit and fill in the information left blank that is needed for the 2018 reporting year.

Description of Transfer Source Sub-Basin Receiving Sub-Basin Transfer Capacity
No Transfers Listed.

4-B. Enter the average daily and maximum day surface water transfer amount for each month in million gallons per day (MGD)

Month # of Days
Transferred		 Average Daily
Transfer (MGD)		 Maximum Day
Transfer (MGD)		 Month # of Days
Transferred		 Average Daily
Transfer (MGD)		 Maximum Day
Transfer (MGD)
Jan Jul
Feb Aug
Mar Sep
Apr Oct
May Nov
Jun Dec

Do you have any comments?

In section 2A, average daily withdrawal was also entered as the maximum daily withdrawal per guidance from John Barr for the 2015 report and therefore kept the same. The data is not collected on a daily basis. Well totalizers are read monthly. Pumping capacity is entered in 2B; however, is not used to calculate the maximum daily withdrawal as the site does not pump at max capacity. Wells are pumped at a steady rate throughout the month. In section 3B, the discharge capacity of 001 is listed as the same as the averaged discharged. There is no permitted limit on 001 outfall because the storm water also discharges through here. During September and October the aftermath of Hurricane Florence caused river flooding of our 001 weir. Flow is estimated during this time.