JF Brennan Company, Inc. ya La Crosse, Wis., ikupita patsogolo kwambiri pa ntchito yoboola nyanja ya Lake Redwood ku Minnesota.
Malinga ndi Redwood-Cottonwood Rivers Control Area (RCRCA), patadutsa milungu itatu kuti ntchitoyi ichitike, a JF Brennan adachotsa matope opitilira ma cubic mayadi 76,000 kuchokera ku Nyanja ya Redwood, akuyenda pang'onopang'ono ku cholinga cha ma kiyubiki mayadi 650,000.
"Kuyambira sabata ya Meyi 16, a Michael B. dredge afika pafupi ndi dziwe ndikuyamba kugwira ntchito kumwera kumadera akuya kwambiri kuti abwezeretse nyanja ndi njira ya Redwood River kukuya kwake koyambirira," idatero RCRCA posintha. ."Mamita osachepera 100 kuchokera ku damu, komanso mapazi 25 kuchokera m'mphepete mwa nyanja, amafunikira kuti agwire ntchito zowononga ndi zofunikira za chilolezo."
RCRCA idawonjezeranso kuti kutulutsa kwamadzi kuchokera ku Confined Dewatering Facility (CDF), komwe kumadziwikanso kuti dziwe lothirira madzi, kudatulutsidwa koyamba pa Meyi 12. Ubwino wamadzi otuluka umayang'aniridwa kuti zitsimikizire kuti zikukwaniritsa miyezo yovomerezeka ya turbidity, phosphorous ndi Kufuna kwachilengedwe kwa carbonaceous (CBOD).
