DC Water & Sewer Authority (DC) Water Quality

DC Water & Sewer Authority is a large public water system in EPA region 03 that provides tap water for the 20001 - 20013, 20016 - 20020, 20024, 20027, 20030, 20033, 20036 - 20045, 20049, 20050, 20053, 20056 - 20071, 20074 - 20078, 20081, 20082, 20091, 20202 - 20204, 20207, 20208, 20211 - 20224, 20227 - 20230, 20233, 20237 - 20242, 20245, 20251, 20252, 20260 - 20262, 20266, 20270, 20289, 20301, 20306, 20314, 20318, 20319, 20340, 20355, 20372 - 20376, 20388 - 20395, 20401 - 20408, 20411 - 20429, 20433 - 20437, 20440 - 20442, 20447, 20453, 20460, 20468 - 20470, 20500 - 20511, 20520 - 20531, 20534 - 20544, 20547 - 20549, 20552 - 20555, 20559, 20560, 20566, 20571 - 20573, 20576 - 20581, 20586, 20591, 20594, 20599 zip codes. It has 3 facilities where the water supply was tested for 23 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 38.3 µg/L. The maximum reported level of Manganese was 0.75 µg/L. There were 2 contamintants found in the DC Water & Sewer Authority water supply at levels that were above the minimum reporting level. 0 of the contaminants were above the reference level, which means they may pose a risk to human health.

Contaminants

1-butanol

Dale 18
Dalecarlia Connection ℹ️
0%
<2.0 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<2.0 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<2.0 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<2.0 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<2.0 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<2.0 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<2.0 µg/L
Below Reporting Level
4/11/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<2.0 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 2 µg/L
Reference Level: 700 µg/L
Contaminant Details

2-methoxyethanol

Dale 18
Dalecarlia Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
4/11/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.4 µg/L
Reference Level: 21 µg/L
Contaminant Details

2-propen-1-ol (Allyl Alcohol)

Dale 18
Dalecarlia Connection ℹ️
0%
<0.5 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.5 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.5 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.5 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.5 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.5 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.5 µg/L
Below Reporting Level
4/11/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.5 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.5 µg/L
Reference Level: 35 µg/L
Contaminant Details

HAA5 (five regulated haloacetic acids)

Kenndey St. NW
Distribution System ℹ️
63.8%
38.3 µg/L
⚠️ Exceeds 50% of Reference Level
11/14/2018
6 years ago
E. Capital St. NE
Distribution System ℹ️
63.2%
37.9 µg/L
⚠️ Exceeds 50% of Reference Level
11/14/2018
6 years ago
8th St. NE
Distribution System ℹ️
58.3%
35 µg/L
⚠️ Exceeds 50% of Reference Level
11/14/2018
6 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
58.3%
35 µg/L
⚠️ Exceeds 50% of Reference Level
11/14/2018
6 years ago
Overlook Ave. SW
Distribution System ℹ️
56.7%
34 µg/L
⚠️ Exceeds 50% of Reference Level
11/14/2018
6 years ago
Rhode Island Ave. NE
Distribution System ℹ️
55%
33 µg/L
⚠️ Exceeds 50% of Reference Level
11/14/2018
6 years ago
Water St. SW
Distribution System ℹ️
53.3%
32 µg/L
⚠️ Exceeds 50% of Reference Level
11/14/2018
6 years ago
Broad Branch Rd. NW
Distribution System ℹ️
53%
31.8 µg/L
⚠️ Exceeds 50% of Reference Level
11/14/2018
6 years ago
49th St. NE
Distribution System ℹ️
50%
30 µg/L
Meets Reporting Threshold
11/14/2018
6 years ago
Kalmia Rd. NW
Distribution System ℹ️
27%
16.2 µg/L
Meets Reporting Threshold
11/14/2018
6 years ago
56th St. NE
Distribution System ℹ️
22.7%
13.6 µg/L
Meets Reporting Threshold
11/14/2018
6 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
12.5%
7.5 µg/L
Meets Reporting Threshold
11/14/2018
6 years ago
E. Capital St. NE
Distribution System ℹ️
110%
66 µg/L
☠️ Exceeds Reference Level by 6 µg/L
8/15/2018
7 years ago
49th St. NE
Distribution System ℹ️
107.3%
64.4 µg/L
☠️ Exceeds Reference Level by 4.4 µg/L
8/15/2018
7 years ago
8th St. NE
Distribution System ℹ️
106.3%
63.8 µg/L
☠️ Exceeds Reference Level by 3.8 µg/L
8/15/2018
7 years ago
Overlook Ave. SW
Distribution System ℹ️
102.8%
61.7 µg/L
☠️ Exceeds Reference Level by 1.7 µg/L
8/15/2018
7 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
101.3%
60.8 µg/L
☠️ Exceeds Reference Level by 0.8 µg/L
8/15/2018
7 years ago
Broad Branch Rd. NW
Distribution System ℹ️
84.3%
50.6 µg/L
❗ Exceeds 80% of Reference Level
8/15/2018
7 years ago
Rhode Island Ave. NE
Distribution System ℹ️
58.5%
35.1 µg/L
⚠️ Exceeds 50% of Reference Level
8/15/2018
7 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
51.7%
31 µg/L
⚠️ Exceeds 50% of Reference Level
8/15/2018
7 years ago
Kalmia Rd. NW
Distribution System ℹ️
9.2%
5.5 µg/L
Meets Reporting Threshold
8/15/2018
7 years ago
Kenndey St. NW
Distribution System ℹ️
97.3%
58.4 µg/L
❗ Exceeds 80% of Reference Level
8/14/2018
7 years ago
Water St. SW
Distribution System ℹ️
95.2%
57.1 µg/L
❗ Exceeds 80% of Reference Level
8/14/2018
7 years ago
56th St. NE
Distribution System ℹ️
66.7%
40 µg/L
⚠️ Exceeds 50% of Reference Level
8/14/2018
7 years ago
56th St. NE
Distribution System ℹ️
63.5%
38.11 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
49th St. NE
Distribution System ℹ️
63.2%
37.92 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
61.4%
36.87 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
Kenndey St. NW
Distribution System ℹ️
61.4%
36.82 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
61.2%
36.7 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
Overlook Ave. SW
Distribution System ℹ️
59.8%
35.88 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
Kalmia Rd. NW
Distribution System ℹ️
59.7%
35.8 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
Broad Branch Rd. NW
Distribution System ℹ️
59.2%
35.5 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
Water St. SW
Distribution System ℹ️
57.9%
34.74 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
8th St. NE
Distribution System ℹ️
57.7%
34.63 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
Rhode Island Ave. NE
Distribution System ℹ️
55.8%
33.48 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
E. Capital St. NE
Distribution System ℹ️
54.1%
32.43 µg/L
⚠️ Exceeds 50% of Reference Level
5/15/2018
7 years ago
49th St. NE
Distribution System ℹ️
54.6%
32.74 µg/L
⚠️ Exceeds 50% of Reference Level
2/14/2018
7 years ago
Broad Branch Rd. NW
Distribution System ℹ️
46.1%
27.68 µg/L
Meets Reporting Threshold
2/14/2018
7 years ago
Kalmia Rd. NW
Distribution System ℹ️
43.6%
26.15 µg/L
Meets Reporting Threshold
2/14/2018
7 years ago
56th St. NE
Distribution System ℹ️
39.5%
23.7 µg/L
Meets Reporting Threshold
2/14/2018
7 years ago
8th St. NE
Distribution System ℹ️
39.3%
23.57 µg/L
Meets Reporting Threshold
2/14/2018
7 years ago
Overlook Ave. SW
Distribution System ℹ️
37.8%
22.7 µg/L
Meets Reporting Threshold
2/14/2018
7 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
37.8%
22.67 µg/L
Meets Reporting Threshold
2/14/2018
7 years ago
Kenndey St. NW
Distribution System ℹ️
39.3%
23.57 µg/L
Meets Reporting Threshold
2/13/2018
7 years ago
Water St. SW
Distribution System ℹ️
39.3%
23.55 µg/L
Meets Reporting Threshold
2/13/2018
7 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
36.1%
21.65 µg/L
Meets Reporting Threshold
2/13/2018
7 years ago
E. Capital St. NE
Distribution System ℹ️
36%
21.59 µg/L
Meets Reporting Threshold
2/13/2018
7 years ago
Rhode Island Ave. NE
Distribution System ℹ️
33.8%
20.28 µg/L
Meets Reporting Threshold
2/13/2018
7 years ago
Minimum Reporting Level: 0.5 µg/L
Reference Level: 60 µg/L
Contaminant Details

HAA6Br (six brominated haloacetic acids)

E. Capital St. NE
Distribution System ℹ️
0%
7.92 µg/L
11/14/2018
6 years ago
Overlook Ave. SW
Distribution System ℹ️
0%
7.41 µg/L
11/14/2018
6 years ago
Kenndey St. NW
Distribution System ℹ️
0%
7.23 µg/L
11/14/2018
6 years ago
8th St. NE
Distribution System ℹ️
0%
7.22 µg/L
11/14/2018
6 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
0%
7.2 µg/L
11/14/2018
6 years ago
Rhode Island Ave. NE
Distribution System ℹ️
0%
6.8 µg/L
11/14/2018
6 years ago
Broad Branch Rd. NW
Distribution System ℹ️
0%
6.72 µg/L
11/14/2018
6 years ago
Water St. SW
Distribution System ℹ️
0%
6.68 µg/L
11/14/2018
6 years ago
49th St. NE
Distribution System ℹ️
0%
6.56 µg/L
11/14/2018
6 years ago
56th St. NE
Distribution System ℹ️
0%
3.25 µg/L
11/14/2018
6 years ago
Kalmia Rd. NW
Distribution System ℹ️
0%
3.02 µg/L
11/14/2018
6 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
0%
1.81 µg/L
11/14/2018
6 years ago
Broad Branch Rd. NW
Distribution System ℹ️
0%
9.34 µg/L
8/15/2018
7 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
0%
9.05 µg/L
8/15/2018
7 years ago
Overlook Ave. SW
Distribution System ℹ️
0%
8.82 µg/L
8/15/2018
7 years ago
8th St. NE
Distribution System ℹ️
0%
8.6 µg/L
8/15/2018
7 years ago
E. Capital St. NE
Distribution System ℹ️
0%
8.35 µg/L
8/15/2018
7 years ago
49th St. NE
Distribution System ℹ️
0%
8.16 µg/L
8/15/2018
7 years ago
Rhode Island Ave. NE
Distribution System ℹ️
0%
4.3 µg/L
8/15/2018
7 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
0%
4 µg/L
8/15/2018
7 years ago
Kalmia Rd. NW
Distribution System ℹ️
0%
.49 µg/L
8/15/2018
7 years ago
Water St. SW
Distribution System ℹ️
0%
9.99 µg/L
8/14/2018
7 years ago
Kenndey St. NW
Distribution System ℹ️
0%
9.13 µg/L
8/14/2018
7 years ago
56th St. NE
Distribution System ℹ️
0%
5.4 µg/L
8/14/2018
7 years ago
Overlook Ave. SW
Distribution System ℹ️
0%
9.58 µg/L
5/15/2018
7 years ago
49th St. NE
Distribution System ℹ️
0%
9.55 µg/L
5/15/2018
7 years ago
Kenndey St. NW
Distribution System ℹ️
0%
9.52 µg/L
5/15/2018
7 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
0%
9.48 µg/L
5/15/2018
7 years ago
56th St. NE
Distribution System ℹ️
0%
9.44 µg/L
5/15/2018
7 years ago
Water St. SW
Distribution System ℹ️
0%
9.35 µg/L
5/15/2018
7 years ago
Broad Branch Rd. NW
Distribution System ℹ️
0%
9.32 µg/L
5/15/2018
7 years ago
Rhode Island Ave. NE
Distribution System ℹ️
0%
9.17 µg/L
5/15/2018
7 years ago
8th St. NE
Distribution System ℹ️
0%
9.15 µg/L
5/15/2018
7 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
0%
9.09 µg/L
5/15/2018
7 years ago
E. Capital St. NE
Distribution System ℹ️
0%
9.08 µg/L
5/15/2018
7 years ago
Kalmia Rd. NW
Distribution System ℹ️
0%
9 µg/L
5/15/2018
7 years ago
49th St. NE
Distribution System ℹ️
0%
12.49 µg/L
2/14/2018
7 years ago
Overlook Ave. SW
Distribution System ℹ️
0%
10.78 µg/L
2/14/2018
7 years ago
56th St. NE
Distribution System ℹ️
0%
10.57 µg/L
2/14/2018
7 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
0%
10.52 µg/L
2/14/2018
7 years ago
8th St. NE
Distribution System ℹ️
0%
9.65 µg/L
2/14/2018
7 years ago
Kalmia Rd. NW
Distribution System ℹ️
0%
9.34 µg/L
2/14/2018
7 years ago
Broad Branch Rd. NW
Distribution System ℹ️
0%
8.49 µg/L
2/14/2018
7 years ago
E. Capital St. NE
Distribution System ℹ️
0%
12.59 µg/L
2/13/2018
7 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
0%
10.63 µg/L
2/13/2018
7 years ago
Rhode Island Ave. NE
Distribution System ℹ️
0%
10.28 µg/L
2/13/2018
7 years ago
Water St. SW
Distribution System ℹ️
0%
9.74 µg/L
2/13/2018
7 years ago
Kenndey St. NW
Distribution System ℹ️
0%
8.61 µg/L
2/13/2018
7 years ago
Minimum Reporting Level: 0 µg/L
Reference Level: ?
Contaminant Details

HAA9 (nine haloacetic acids)

E. Capital St. NE
Distribution System ℹ️
0%
45.82 µg/L
11/14/2018
6 years ago
Kenndey St. NW
Distribution System ℹ️
0%
45.53 µg/L
11/14/2018
6 years ago
8th St. NE
Distribution System ℹ️
0%
42.22 µg/L
11/14/2018
6 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
0%
42.2 µg/L
11/14/2018
6 years ago
Overlook Ave. SW
Distribution System ℹ️
0%
41.41 µg/L
11/14/2018
6 years ago
Rhode Island Ave. NE
Distribution System ℹ️
0%
39.8 µg/L
11/14/2018
6 years ago
Water St. SW
Distribution System ℹ️
0%
38.68 µg/L
11/14/2018
6 years ago
Broad Branch Rd. NW
Distribution System ℹ️
0%
38.52 µg/L
11/14/2018
6 years ago
49th St. NE
Distribution System ℹ️
0%
36.56 µg/L
11/14/2018
6 years ago
Kalmia Rd. NW
Distribution System ℹ️
0%
19.22 µg/L
11/14/2018
6 years ago
56th St. NE
Distribution System ℹ️
0%
16.85 µg/L
11/14/2018
6 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
0%
9.31 µg/L
11/14/2018
6 years ago
E. Capital St. NE
Distribution System ℹ️
0%
74.35 µg/L
8/15/2018
7 years ago
49th St. NE
Distribution System ℹ️
0%
72.56 µg/L
8/15/2018
7 years ago
8th St. NE
Distribution System ℹ️
0%
72.4 µg/L
8/15/2018
7 years ago
Overlook Ave. SW
Distribution System ℹ️
0%
70.52 µg/L
8/15/2018
7 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
0%
69.85 µg/L
8/15/2018
7 years ago
Broad Branch Rd. NW
Distribution System ℹ️
0%
59.94 µg/L
8/15/2018
7 years ago
Rhode Island Ave. NE
Distribution System ℹ️
0%
39.4 µg/L
8/15/2018
7 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
0%
35 µg/L
8/15/2018
7 years ago
Kalmia Rd. NW
Distribution System ℹ️
0%
5.99 µg/L
8/15/2018
7 years ago
Kenndey St. NW
Distribution System ℹ️
0%
67.53 µg/L
8/14/2018
7 years ago
Water St. SW
Distribution System ℹ️
0%
66.79 µg/L
8/14/2018
7 years ago
56th St. NE
Distribution System ℹ️
0%
45.4 µg/L
8/14/2018
7 years ago
56th St. NE
Distribution System ℹ️
0%
47.04 µg/L
5/15/2018
7 years ago
49th St. NE
Distribution System ℹ️
0%
46.95 µg/L
5/15/2018
7 years ago
Kenndey St. NW
Distribution System ℹ️
0%
45.92 µg/L
5/15/2018
7 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
0%
45.88 µg/L
5/15/2018
7 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
0%
45.29 µg/L
5/15/2018
7 years ago
Overlook Ave. SW
Distribution System ℹ️
0%
44.98 µg/L
5/15/2018
7 years ago
Broad Branch Rd. NW
Distribution System ℹ️
0%
44.42 µg/L
5/15/2018
7 years ago
Kalmia Rd. NW
Distribution System ℹ️
0%
44.4 µg/L
5/15/2018
7 years ago
Water St. SW
Distribution System ℹ️
0%
43.65 µg/L
5/15/2018
7 years ago
8th St. NE
Distribution System ℹ️
0%
43.35 µg/L
5/15/2018
7 years ago
Rhode Island Ave. NE
Distribution System ℹ️
0%
42.17 µg/L
5/15/2018
7 years ago
E. Capital St. NE
Distribution System ℹ️
0%
41.08 µg/L
5/15/2018
7 years ago
49th St. NE
Distribution System ℹ️
0%
43.29 µg/L
2/14/2018
7 years ago
Broad Branch Rd. NW
Distribution System ℹ️
0%
35.69 µg/L
2/14/2018
7 years ago
Kalmia Rd. NW
Distribution System ℹ️
0%
34.84 µg/L
2/14/2018
7 years ago
56th St. NE
Distribution System ℹ️
0%
33.57 µg/L
2/14/2018
7 years ago
Overlook Ave. SW
Distribution System ℹ️
0%
32.78 µg/L
2/14/2018
7 years ago
8th St. NE
Distribution System ℹ️
0%
32.65 µg/L
2/14/2018
7 years ago
Martin Luther King Ave. SE
Distribution System ℹ️
0%
32.52 µg/L
2/14/2018
7 years ago
E. Capital St. NE
Distribution System ℹ️
0%
33.59 µg/L
2/13/2018
7 years ago
Water St. SW
Distribution System ℹ️
0%
32.74 µg/L
2/13/2018
7 years ago
Bunker Hill Rd. NE
Distribution System ℹ️
0%
31.63 µg/L
2/13/2018
7 years ago
Kenndey St. NW
Distribution System ℹ️
0%
31.61 µg/L
2/13/2018
7 years ago
Rhode Island Ave. NE
Distribution System ℹ️
0%
29.98 µg/L
2/13/2018
7 years ago
Minimum Reporting Level: 0 µg/L
Reference Level: ?
Contaminant Details

alpha-hexachlorocyclohexane

Dale 18
Dalecarlia Connection ℹ️
0%
<0.01 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.01 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.01 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.01 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.01 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.01 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.01 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.01 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.01 µg/L
Reference Level: 0.006 µg/L
Contaminant Details

anatoxin-a

Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
10/15/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
10/15/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
10/1/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
10/1/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/17/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/17/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/5/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
9/5/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/20/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/20/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/6/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/6/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/16/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/16/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/2/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
7/2/2018
7 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

Butylated Hydroxyanisole

Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: ?
Contaminant Details

chlorpyrifos

Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: 2 µg/L
Contaminant Details

cylindrospermopsin

Dale 18
Dalecarlia Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
10/15/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
10/15/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
10/1/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
10/1/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
9/17/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
9/17/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
9/5/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
9/5/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
8/20/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
8/20/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
8/6/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
8/6/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/16/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/16/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/2/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.09 µg/L
Below Reporting Level
7/2/2018
7 years ago
Minimum Reporting Level: 0.09 µg/L
Reference Level: 0.7 µg/L
Contaminant Details

dimethipin

Dale 18
Dalecarlia Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: 140 µg/L
Contaminant Details

ethoprop

Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.03 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.03 µg/L
Reference Level: 1.14 µg/L
Contaminant Details

Germanium

Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: ?
Contaminant Details

Manganese

Dale 18
Dalecarlia Connection ℹ️
0.3%
.75 µg/L
Meets Reporting Threshold
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0.2%
.72 µg/L
Meets Reporting Threshold
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0.3%
.88 µg/L
Meets Reporting Threshold
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0.4%
1.2 µg/L
Meets Reporting Threshold
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.4 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.4 µg/L
Reference Level: 300 µg/L
Contaminant Details

o-toluidine

Dale 18
Dalecarlia Connection ℹ️
0%
<0.007 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.007 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.007 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.007 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.007 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.007 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.007 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.007 µg/L
Reference Level: ?
Contaminant Details

oxyfluorfen

Dale 18
Dalecarlia Connection ℹ️
0%
<0.05 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.05 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.05 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.05 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.05 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.05 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.05 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.05 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.05 µg/L
Reference Level: 200 µg/L
Contaminant Details

profenofos

Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: 0.3 µg/L
Contaminant Details

quinoline

Dale 18
Dalecarlia Connection ℹ️
0%
<0.02 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.02 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.02 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.02 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.02 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.02 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.02 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.02 µg/L
Reference Level: 0.01 µg/L
Contaminant Details

tebuconazole

Dale 18
Dalecarlia Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.2 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.2 µg/L
Reference Level: 190 µg/L
Contaminant Details

Total Microcystin

Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
10/15/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
10/15/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
10/1/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
9/20/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
9/17/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
9/5/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
9/5/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/20/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/20/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/6/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
8/6/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/16/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/16/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/2/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.3 µg/L
Below Reporting Level
7/2/2018
7 years ago
Minimum Reporting Level: 0.3 µg/L
Reference Level: 0.3 µg/L
Contaminant Details

Total Permethrin

Dale 18
Dalecarlia Connection ℹ️
0%
<0.04 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.04 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.04 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.04 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.04 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.04 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.04 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.04 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.04 µg/L
Reference Level: 3.344 µg/L
Contaminant Details

tribufos

Dale 18
Dalecarlia Connection ℹ️
0%
<0.07 µg/L
Below Reporting Level
11/14/2018
6 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.07 µg/L
Below Reporting Level
11/14/2018
6 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.07 µg/L
Below Reporting Level
8/15/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.07 µg/L
Below Reporting Level
8/15/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.07 µg/L
Below Reporting Level
5/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.07 µg/L
Below Reporting Level
5/14/2018
7 years ago
Dale 18
Dalecarlia Connection ℹ️
0%
<0.07 µg/L
Below Reporting Level
2/14/2018
7 years ago
McMillan J South
McMillan Connection ℹ️
0%
<0.07 µg/L
Below Reporting Level
2/14/2018
7 years ago
Minimum Reporting Level: 0.07 µg/L
Reference Level: 0.6 µg/L
Contaminant Details

Sampling Facilities

Dalecarlia Connection
Surface Water (SW)

Dale 18EP

McMillan Connection
Surface Water (SW)

McMillan J SouthEP

Distribution System
Surface Water (SW)

8th St. NEDS
E. Capital St. NEDS
Bunker Hill Rd. NEDS
Rhode Island Ave. NEDS
Kenndey St. NWDS
Kalmia Rd. NWDS
Broad Branch Rd. NWDS
56th St. NEDS
Martin Luther King Ave. SEDS
Overlook Ave. SWDS
49th St. NEDS
Water St. SWDS

FAQ

Is DC Water & Sewer Authority tap water safe to drink?

When was DC Water & Sewer Authority last tested for water contamination?

The latest water samples were taken between October 15th, 2018 and November 14th, 2018.