'Los Alamos NATIONAL LA BORA TORY

Los Alamos National Laboratory Los Alamos, New Mexico 87545

Marcy Leavitt, Bureau Chief Ground Water Protection and Remediation Bureau New Mexico Environment Department 1190 St. Francis Drive. Santa Fe, New Mexico 87502

Date: October 10, 1996 In Reply Refer To: ESH-18/WQ&H:96-0517

Mail Stop: K497 Telephone: (505) 665-1859

Jim Piatt, Bureau Chief Surface Water Quality Bureau New Mexico Environment Department 1190 St. Francis Drive Santa Fe, New Mexico 87502

SUBJECT: LOS ALAMOS NATIONAL LABORATORY, NOTICE OF INTENT TO DISCHARGE

Dear Ms. Leavitt and Mr. Piatt:

Enclosed is a Notice of Intent to Discharge which is being submitted to the New Mexico Environment Departmen~ (NMED) under Section 1201 of the New Mexico Water Quality Control Commission (NMWQCC) Regulations. This NOI covers the discharge of water for suppressing dust from demolition activities being performed at Technical Area 21, which is centered on DP mesa immediately southeast of the Los Alamos townsite. This activity is being conducted by the Laboratory's Environmental Restoration Project's Decommission Group and consists of the dismantlement and removal of concrete structures and soil of Buildings 3 and 4 North (see attached diagram).

The dust suppression discharge from four low flow hoses and misting nozzles will range from 200 to 2000 gallons per day. The discharge will be contained on-site. The discharges associated with the building footprints will be contained in soil-floor utility tunnels beneath the buildings. The dust suppression water used in this area may have a pH of 12 due to the lime in the concrete that is being demolished. The soil in the utility tunnels is radioactively contaminated. This soil will be excavated as part of the project and disposed of as low-level radioactive waste. Stormwater runoff associated with this project will be contained on site in a bermed retention pond. This retention pond will retain all surface water flows and there will be no surface water discharges to a watercourse. In addition, the runoff collected in this retention pond should have no contaminants. Further details regarding this activity are contained in the attached application and water containment plan.

Please call Mike Saladen at 665-6085 or Mike Alexander at 665-4752 of the Laboratory's Water Quality & Hydrology Group (ESH-18) if you need any additional information concerning the NO I.

Sincerely,

~·~ Steven R. Rae ESH-18 Group Leader Water Quality & Hydrology Group

IIIII II 1111111111 1111111111 11111111 10264

Marcy Levitt, Jim Piatt ESH -18/WQ&H:96-0517

SR:CJ/em

Enclosures: als

- 2-

Cy: M. Saladen, ESH-18, w/enc., MS K497 M. Alexander, ESH-18, w/enc. , MS K497 C. Jacquez, ESH-18, w/enc., MS K497 D. Stout, EMlER, w/enc., MS M769 J. Jansen EMlER, w/enc. MS M992 D. Mcinroy, EMlER, w/enc., MS M992 M. Brown, JCIIJENV, w/enc., MS A199 P. Shanley, ESH-19, w/enc., MS K498 K. Zamora, DOE-LAAO, w/enc., MS A316 G. Saums, NMED/SWQB, w/enc., Santa Fe H. Decker, NMED/AIP, w/enc., Santa Fe B. Garcia, NMED/HRMB, w/enc., Santa Fe CRM-4, w/enc., MS A150 WQ&H File, w/att., MS K497

October 10, 1996

NOTICE OF INTENT

1. Name and address of the facility making the discharge.

Dan Stout Los Alamos National Laboratory P.O. Box 1663, MS M773 Los Alamos, New Mexico 87545

2. Location of the discharge.

The discharge will occur at the T A-21 site, which is centered on DP mesa immediately southeast of the Los Alamos townsite. Discharges will occur on the footprints of Buildings 3 and 4 North, as the concrete flooring and foundations are removed and the dust is suppressed with water. A discharge will also occur to the north of the buildings, where a retention berm will collect all stormwater runoff associated with the project. Discharge collected in this retention pond is expected to evaporate or perculate into the ground. For locations of demolition and discharge, see attached diagram and map.

3. The means of discharge (to Lagoon, Flowing Stream, Water Course, Arroyo, Septic Tank, Other).

The discharge will be onto the ground and wholly contained on-site at TA-21. The discharges associated with the building footprints will be contained in soil-floor utility tunnels beneath the TA-21 buildings 3 and 4. Stormwater in the general area of the project will be discharged to the berrned retention pond.

4. The estimated concentration of contaminant in the discharge.

The dust suppression water that will be discharged to the TA-21 Building 3 and 4 tunnels may have a pH of 12 due to the lime in the concrete that is being demolished. The soil at the bottom of the utility tunnels is radioactively contaminated. This soil will be excavated as part of the project and disposed of as low-level radioactive waste. The storrnwater draining to the retention pond should not have any contaminants.

5. The type of operation from which the discharge is derived.

The discharges are the result of the dismantlement and removal of the concrete structures and soil of Buildings 3 and 4 North. A fine water spray is used to reduce the dust emissions associated with concrete and soil excavation.

6. The estimated flow to be discharged per day.

The dust suppression discharge will range from 200 to 2000 gallons per day. Four low flow hoses and misting nozzles will discharge a maximum of a gallon per minute during the eight hour workday (approximately 1920 gallons total). Stormwater collected in the retention pond is estimated to be 16000 gallons (4 inches of rain in a 500 by 100 foot area) over the next three months.

7. The estimated depth to ground water (if available).

The depth to ground water is 750 feet (from the TA-21 RFI workplan).

Signed.____,~'---~--=---~-=---:::-::=-=-=--­Group Leader, ESH-18

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Page 2-12

21-011 (h) 21-011(j) 21-011(i)

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Signature--------- Date------ Pg-of_

QUESTION:

Answer:

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Interview With Scott Kincaid On 10/23/97

What is your current position?

Staff Scientist. Chemist in DX-2 research.

Is this current position same as what you held in TA-21?

No.

What were your activities in TA-21?

Artinid and Flourine Chemistry - research in support of Plutonium facility. Processing and recovery, variety of applications.

From when to when?

1984 to January 1994

Where did you work in TA-21?

Building 3&4 North

Did you supervise people?

Yes, 2-5 people was the lead researcher in this part of facility. J.F. came in the late 80's.

Did you share the facility?

Yes, usually 2 others. Did basically the same work.

What hazardous wastes were generated by your activity?

Transuranic wastes only he believes. Did not use solvents in 4 but did in 3. Had a SAP located on outside between 3&4.

Did you receive training on hazardous waste management?

Yes, late '80s. Does not think he received any further training.

How often did you turn in waste?

Answer:

Question:

Answer:

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Answer:

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Answer:

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Answer:

Turned in 1 to 2 times per year from SAP.

When did you leave that portion of the lab? When did you move?

Between '92 and '94

Did you turn in waste at that time?

No, was out of 3N did not generate any other solvent waste in 4.

Why did gas cylinders get left in your area?

When he moved to 48, was asked to build a new faciliy. Took leave of absence in July 1995. Bldg. 4N was evacuated. Not all cylinders were his, does not know who took responsibility of gas cylinder after he moved out. J.F. moved out at this same time. Was J.F super. and.J;._esh ownpd.' "t;hjn al~1 at

1 :th_; time they left.

/t fll)' rCJ-~{~ ,;A4, ": tf-.w.JVi... . Why didn't you dtirJ in the cylinders?

Many of the cylinders were not replacible.

Were you directed to turn them in by anyone?

No

Were you responsible for wastes generated in your area by your activities?

Does not know who that person was.?

Do you have anything to add to any of your answers or do you have any questions?

No.

HRMB INSPECTION PERSONAL INTERVIEW STATEMENT

I.,_S~c~o~t'""-t "'"'Ki""'. n"""k~e""a~d=------- of

Facility Name

11/25/97 Date and Time

Los Alamos National Laboratory Place of Interview

Complete Home Address

Telephone (_) ____ Soc. Sec. No. ---'! __ ! __ Age __

(X) am ( ) was employed by Los Alamos National Laboratory, whose address is Complete Name of Employer

P.O. Box 1663 MS C920 Los Alamos National Laborator Los Alamos NM 87545 Complete Address of Employer

from April 1984 to July, 1995, and July 1997 to Present __________ _

My occupation is Staff Scientist (Chemist) in High Explosive Science & Technology Dept.

Statement:

I was a staff scientist a Technical Area 21 (D.P. West) from April 1984 until January,

1994. During that time. I was involved in experimentation with, and was responsible for

keeping some of the gas cylinders at the site. In January, 1994. I transferred from Group

CST-10. located at TA-21 to CST-7, located at TA-48. I took a leave of absence to work

in California in July, 1995 before the gas cylinders could be transferred to the appropriate

facility at T A-48. I do not know who assumed responsibility the gas cylinders after my

This statement is being given in the presence of: _____________ _

PLEASE INDICATE EMPLOYEE'S DESIRE: ( ) Does not wish this statement be released.

ANY CHANGES IN THIS INTERVIEW MUST BE AND THE INSPECTOR

(X) This statement may be Released.

..(