TABLE 3.

Results of modeling and summary of chemical analyses of drinking water source water samples

DWTP #	De Facto Reuse at Mean Streamflow %	Proximity Index (PI)	Skewness Index (SK)	Number of Organic Chemicals Qualitatively Detected (n = 192)	Number of Organic Chemicals Quantitatively Detected (n = 192)	Sum Quantitative Detections ng/L
DWTP 1	12.8	20	0.67	31	16	135.3
DWTP 2	2.2	3.5	0.57	32	18	1,075.2
DWTP 3	2.3	169	1.0	55	31	820.2
DWTP 4	7.8	40	0.26	71	35	1,425.5
DWTP 5	—	—	—	9	4	27.5
DWTP 10	0.4	43	0.02	28	18	460.9
DWTP 11	0.8	16	0.41	15	6	1.5
DWTP 12	—	—	—	18	11	69.9
DWTP 13	0	0	0	12	9	3.3
DWTP 14	0.03	19	1.00	13	8	2.7
DWTP 15	0.3	4.9	0.69	14	6	1.5
DWTP 16	2.7	30	0.42	15	13	350.1
DWTP 17	1.3	39	1.00	26	13	293.4
DWTP 18	2.6	46	0.24	26	22	265.6
DWTP 19	1.0	15	0.50	24	10	27.6
DWTP 20	1.5	15	0.31	22	8	20.0
DWTP 21	2.2	3.5	0.86	36	20	877.6
DWTP 22	0.9	156	1.00	37	26	1,762.2
DWTP 23	0	0	0	18	11	138.3
DWTP 24	—	—	—	13	11	541.7
DWTP 25	4.3	64	1.00	19	11	17.7
DWTP 26	2.8	39	0.84	44	20	451.9
DWTP 27	6.4	35	0.44	41	24	1,699.7
DWTP 28	1.4	39	1.00	24	15	232.4
DWTP 29	0	0	0	15	8	31.1

Concentration data source: Glassmeyer et al. 2017.

DWTP—drinking water treatment plant

Dashes indicate groundwater locations therefore excluded from calculation.