ML19269C268

Summarizes Environ Protection Program Re Unit Const for 6 Months Ending 781031.Repts Const Project 50.9% Complete. Discusses Violations in Following Areas: Dust,Smoke,Erosion, Waste Control,Dewatering of Wells & Vegetation Stress

ML19269C268
Person / Time
Site:	Grand Gulf
Issue date:	10/31/1978
From:	MISSISSIPPI POWER & LIGHT CO.
To:
Shared Package
ML19269C266	List: ML19269C265 ML19269C268
References
NUDOCS 7901310025
Download: ML19269C268 (4)

Text

.

SUMMARY

OF ENVIRONMENTAL PROTECTION PROGRMI

. RESPECTING CONSTRUCTION OF GRAND GULF NUCLEAR STATION FOR SIX MONTHS ENDING OCTOBER 31, 1978 At the end of October 31, 1978, construction of Units 1 & 2 was 76.8%

and 6.9% complete, respectively. The entire construction project was 50.9% complete. In addition, the following items in Unit 1 have been completed: all exterior walls, the dome set, the 1st pour of the hip course, rebar placement on the dome and the PSW line. The Unit 2 reactor arrived on July 31, 1978, and was placed on the temporary storage pad. The drywell liner and RPV slab are complete, and the containment liner concrete is up to elevation 161'.

VEHICULAR MOVEHENT There were no "off limit" violations observed during the reporting period.

DUST CONTROL There was one dust control violation during the reporting period. It involved an excessive amount of cement dust which was being released during batching operations. The dust control bags were cleaned or replaced as necessary.

Existing fugitive dust control measures for site roads were modified by refilling the water wagon at the borrow pit, thus reducing the turnaround time considerably.

SMOKE CONTROL There was one smoke control violation during the rep rting period. The violation involved a Bechtel pickup truck which was removed from service.

A brush fire was observed burning unattended during the reporting period.

The fire was extinguished and no site damage was observed.

7 9 0131 o o cg

EPP Summary Six Months Ending 10/31/78 EROSION CONTROL Rain occurred on thirt. -eight (38) separate occasions during the reporting period with an accumulated rainfall of 19.46 inches. An additional rainfall was observed during May but not recorded due to an eculpment malfunction that has since been corrected. Runoff samples were collected on eight (8) of these instances and returned to the laboratory for suspended solids analysis. Additional runoff was observed on one (1) other occasion, but no samples were taken because the 24-hour time limitation had elapsed over the weekend. Severe erosion was observed at the dam at Mrs. Mary Lee Hamilton Trimble's pond (an adjacent property), the drainage ditch from the main laydown area to Basin "A", the paved ditch from the lower northwest laydown area to Basin "A", the valley from Grand Gulf road to Basin "A" adjacent to the northwest laydown area, and the re-directed Stream "B" crossing beneath the county L,ad. Repairs have been completed in all areas except the county road crossing. A temporary repair at the county road enabled traffic to resume use of the road. Permanent repair in this area will be completed at a later date.

NOISE CONTROL There were no noise control violations during the reporting period.

Mississippi Power & Light Company has continued to observe noise levels and found that construction activities have not reached such noise-producing levels as to warrant resumption of noise level surveys. Pile driving operations for the Unit #2 cooling tower began in May and continued until complete in August. Piles were driven by the day shif t, and no significant increase in noise levels was noticed.

. EPP Summary Six Months Ending 10/31/78 CHEMICAL AND SOLID WASTE CONTROL Eleven (11) chemical and solid waste violations were observed during the six-month period. All were minor in nature and were cleaned up innediately with no oil reaching site streams, lakes, or the Mississippi River.

DEWATERING Only one (1) well showed a water level change of three feet or more. Vell number OW29A showed an increase of 3.7 feet in thy. This was immediately af ter the tornadic winds damaged the concrete batch plant. Little or no concrete was being produced at this time. As concrete production increased, the water level in this well began a corresponding decrease i- elevation.

Well OW202 had a dry reading in early August and has been dry since that time.

A similar occurrence happened in September of 1977. The reason for well OW202 being dry has not been determined. Well number 0W7 was not read in May due to inaccessibility from tornadic wind damage.

VEGETATION Monthly vegetation surveys were made around the site periphery to detect vegetational stresses due to construction activities. No obvious abnormalities that could be attributed to construction activities were evident. Clean up of selected areas continued in May and June from tornadic wind damage.

TRANSMISSION LINES Construction on the 500 Kv Baxter Wilson transmission line from GGNS to Baxter Wilson Steam Plant in Vicksburg began in June. With the exception of two (2) small parcels of wooded land, all clearing is complete. Burning of downed timber has been hampered during September and October due to extremely dry conditions. Foundation work is well underway. A five-thousand (5000) foot section of the Ray Braswell 500 Kv Transmission Line was

EPP Summary Six Months Ending 10/31/78 cleared in September. Brush piling operations began the latter part of October. No EPP violations were observed on either transmission line.