Documentary History of American Water-works

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Middle Atlantic States

Waterworks in Middle Atlantic States

The Middle Atlantic states had the second largest number of waterworks in place by the end of 1800 with the number of systems in each state shown in the following table.  Numbers in parentheses indicates the number of systems that were proposed but not constructed by the end of 1865.

Middle Atlantic 1795 1800 1805 1810 1815 1820 1825 1830 1835 1840 1845 1850 1855 1860 1865 1870 1875 1880
New York 5 11 18 (1) 22 (3) 24 (3) 31 (3) 34 (4) 38 (8) 40 (10) 41 (12) 43 (11) 46 (11) 49 (17) 53 (19) 56 (20) 67 87 107
New Jersey 0 2 5 7 7 (1) 7 (1) 8 (3) 8 (4) 8 (6) 8 (8) 8 (8) 10 (8) 14 (9) 18 (10) 19 (14) 20 24 29
Pennsylvania 4 (1) 4 (1) 6 (0) 9 (3) 9 (5) 15 (5) 20 (5) 27 (6) 29 (7) 30 (7) 38 (7) 42 (7) 52 (10) 65 (19) 67 (20) 84 116 135
Delaware 0 0 1 1 1 1 1 1 1 1 1 1 1 1 (1) 1 (1) 1 2 2
Maryland 0 (1) 0 (1) 0 (1) 1 (0) 1 (0) 2 (3) 2 (3) 3 (4) 3 (4) 3 (5) 3 (5) 3 (5) 4 (4) 4 (4) 4 (4) 5 6 6
District of Columbia 0 0 1 1 1 (1) 1 (1) 1 (1) 1 (1) 1 (1) 1 (1) 1 (1) 1 (1) 1 (1) 2 2 2 2 2
Total 9 (2) 17 (2) 31 (2) 41 (6) 42 (10) 57 (13) 66 (16) 78 (23) 82 (28) 84 (33) 94 (32) 103 (32) 120 (41) 143 (53) 149 (59) 180 237 281

This table shows the number of systems built in each half-decade:

Middle Atlantic 1800 1805 1810 1815 1820 1825 1830 1835 1840 1845 1850 1855 1860 1865 1870 1875 1880
New York 6 7 4 1 8 3 4 2 1 2 3 3 4 3 13 20 20
New Jersey 2 3 2 0 0 1 0 0 0 0 2 4 4 1 1 4 5
Pennsylvania 0 2 3 0 6 5 7 2 1 8 4 10 13 2 17 32 19
Delaware 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
Maryland 0 0 1 0 1 0 1 0 0 0 0 1 0 0 1 1 0
District of Columbia 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0
Total 8 14 10 1 15 9 12 4 2 10 9 18 22 6 33 57 44

2018 Morris A. Pierce