TABLE 1

Applications of Lachno3 and Lachno12 assays for testing environmental samples that had inconsistent results by the HB and Lachno2 assays

Sample nameSample typeSiteSampling date (mo/day/yr)CN/100 mlInterpretation of presumptive sourcesa
HBLachno2Lachno3Lachno12DogBact
FT12431StormwaterHoney Creek 057/24/126723181511620Human
FT17171River waterKinnickinnic River7/22/143756,4508211,6100Human
FT18040StormwaterWilson Park Creek outfall 1810/14/14BLDb9,6201,8901850Human
FT19920River waterMenomonee River7/9/1506752651610Human
FT21217River waterKinnickinnic River grab5/3/1680127,3006,5104,4500Human
FT21380StormwaterKinnickinnic River grab6/7/167,500548,000173,00040,5000Human
FT14569BeachSouth Shore Old Beach 0017/9/13BLD1,760394391276Human/dog
FT14570BeachSouth Shore Old Beach 0027/9/131663,4601,0001,4301,060Human/dog
FT14571BeachSouth Shore Old Beach 0037/9/13018,10098576527,900Human/dog
FT15280StormwaterKinnickinnic River outfall, new11/6/1322533,7002491968,710Human/dog
FT17167River waterKinnickinnic River7/22/141,38134,0006,7308,900944Human/dog
FT17708StormwaterWilson Park Creek outfall 078/25/14BLD9,0201,630466839Human/dog
FT17713StormwaterWilson Park Creek outfall 158/25/1406,150107193408Human/dog
FT20193BeachSouth Shore Old Beach 0018/10/1501,3201320320Human/dog
FT20574River waterKinnickinnic River autosampler9/8/1539,700188,00075,40037,30015,800Human/dog
FT21332StormwaterKinnickinnic River manhole5/10/1601,350017019,200Dog
FT12198StormwaterWilson Park Creek outfall 256/21/12566001320Raccoon
FT15268StormwaterKinnickinnic River outfall 4710/31/133,5400000Raccoon
FT20724StormwaterRussell Avenue manhole10/28/158,5600452560Raccoon
  • a Cow, pig, and deer feces are not expected in these urban water samples.

  • b BLD, below the limit of detection.