TABLE 4.

Levels of ruminant marker equivalent concentrations measured in samples taken throughout the study area^a

Sampling site	Filtration vol (liters)	No. of marker equivalents per liter
		Avg	Range
Spring LKAS2, flood	1.5	3.2 × 105	1.2 × 105-5.3 × 105
Watering brook	1.0	1.2 × 104	0.6 × 104-1.7 × 104
Watering pond	2.0	5.9 × 102	4.4 × 102-8.1 × 102
River	0.3	3.7 × 102	1.5 × 102-6.5 × 102
Spring LKAS2	4.5	Detectedb	Detectedb
Spring KPAS	4.5	NDc	ND

^aThree filtrations per sample.

^bDetectable close to the detection limit in the investigated volume but not reliably quantifiable.

^cND, not detectable.