(plaintiff, environmental activist group, claimed that defendant violated CWA, CERCLA and EPCRA in 2004; consent decree entered into in 2006 and plaintiff notified defendant of alleged violations of decree in 2008 – (over-application of lagoon waste; ponding of manure water in field; manure applications on frozen field; application of manure to field with no cropping activity); attempted settlement failed; court modified decree and extended it for three years; defendant need not pay plaintiff’s attorney fees and costs).