+-----+------------+---------+-----------+---------+----------+--------+
| | Monthly | Liters | Price for | Minimum | Rate for | Total |
|Class| property | of | 1,000 | monthly | drainage | rate |
| | rental. | water | liters. | rate. | service. |payable.|
| | Pesos. | allowed.| Cents. | Pesos. | Pesos. | Pesos. |
+-----+------------+---------+-----------+---------+----------+--------+
| I | Up to 20 | 7,800 | 16 | 1.25 | 1.09 | 2.25 |
| II | 21 to 40 | 12,500 | 16 | 2.00 | 1.60 | 3.60 |
| III | 41 to 60 | 18,750 | 16 | 3.00 | 2.40 | 5.40 |
| IV | 61 to 120 | 23,350 | 15 | 3.50 | 2.80 | 6.30 |
| V | 121 to 300 | 30,000 | 15 | 4.50 | 3.60 | 8.10 |
| VI | 301 upward | 33,350 | 15 | 5.00 | 4.00 | 9.00 |
+-----+------------+---------+-----------+---------+----------+--------+
"Notes: (1st) The rental for the water meters 5/8-in. size
(15-1/2 mm.), which shall always be considered the property
of the Company, will be 20 cents per month. Houses of the
first and second classes shall be exempt from paying such
rental for one year's time, counting from this date.
"(2d) All excess consumption of water over that allowed by the
tariff will be charged for at 2 cents less than the price
shown in the tariff per thousand liters.
"(3d) Extra large houses, large establishments, such as
colleges, hotels, etc., etc., having a consumption of 50,000
to 60,000 liters of water per month, will pay at the rate of
14 cents per thousand liters. The drainage rate for such
buildings will be arranged in proportion to the water tariff,
or 80% of the value of the water.
"(4th) The laundry establishments, bath-houses, etc., when
using 50,000 liters or upward, can arrive at some agreement so
as to pay 12 cents per 1,000 liters.
"(5th) Groups can be formed of two or more small houses so as
to obtain a joint service under the proportion shown in the
tariff.
"(6th) Any other combination that cannot be entered into under
the basis of this tariff, will be arranged by specially agreed
upon prices, such agreement being as much as possible subject
to the basis mentioned."
_Sanitary Regulations._--The State Government, on March 1st, 1909,
published regulations for the proper installation of the water and
drainage services within the houses.
At the Government's request, a draft of the proposed regulations was
submitted by the writer, who prepared it, after a study of American and
British sanitary by-laws, to suit the special conditions of Monterrey.
These regulations were afterward modified by him in collaboration with the
Government Technical Inspector and Financial Interventor, and, in their
final form, though not as stringent as those adopted in many northern
cities, are probably more complete than those in any other Mexican city.
Under these regulations only registered plumbers can undertake plumbing
installations, and they have to execute a bond to the satisfaction of the
_Alcalde Primero_ (City Mayor) for the sum of 2,000 pesos as a guaranty of
responsibility. For defective workmanship or any infraction of the
plumbing regulations, they are liable to heavy fines, and can be called on
to make good all defects in workmanship, without extra charge to the owner
of the property. The provisions of the regulations are carried out under
the supervision of the Government Technical Inspector, the Company's
obligations extending only to the sidewalk and to the meters placed within
the houses.