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Water Charges Calculation

 All customers receiving water from the City of Lubbock shall be billed at the following monthly base and volume rates. Rates effective as of 12-1-2015. (Ordinance Section 22.03.084)

Base Charges

 Meter Size
Charge
 0.75 inch $16.00 
 1 inch  $26.71
 1.5 inch  $53.26
 2 inch  $85.60
 3 inch  $170.64
 4 inch  $266.58
 6 inch  $533.02
 8 inch  $852.86
 10 inch $1,226.11 
*The base charge is the minimum monthly service charge per meter per month.

Water customers must know their Average Winter Consumption (AWC) in order to calculate their water bill. The AWC is the average amount of water that a customer uses between September and February. This value will differ between customers. AWC values are updated every March.

 Volume Charges - Inside City Limits

Customer
Classification 
Block 1 Range
(in gallons)
Block 2 Range
(in gallons) 
Block 3 Range
(in gallons) 
Single-Family
Residential 
 0 to AWC  AWC to AWC +
40,000
 Greater than AWC
+ 40,000
 Single-Family
Residential Sprinkler
 Not Applicable  0 to 40,000 Greater than 40,000 
 Commercial &
Multi-Family Residential
0 to AWC   AWC to AWC 
* 150%
Greater than AWC 
* 150%
Schools  All Usage   Not Applicable Not Applicable 
 Charge per 1,000
gallons
 $4.76  $6.50 $7.79 
 
Volume Charges - Outside City Limits 

 Customer
Classification
 Block 1 Range
(in gallons)
Block 2 Range
(in gallons)  
Block 3 Range
(in gallons)
  
Wholesale  0 to AWC  AWC to AWC
* 300% 
 Greater than AWC
* 300%
 Charge per 1,000
gallons
 $7.140  $9.750 $11.685 

 

For examples of how to calculate a residential water bill:

How to Calculate a Residential Water Bill

To calculate a monthly residential bill, you must know the size of the meter (determines base rate) and the monthly water consumption.

Monthly consumption is determined by using a water meter.  Each house has a separate meter and each meter is read monthly by LP&L.

Some examples...

Let's assume a particular residence with a 3/4-inch meter and an AWC of 5,000 gallons (or 5 Kgal) uses 8,000 gallons (or 8 Kgal) of water during a given spring month.

     Base Charge:                                $16.00
     Volume Charge
            Block 1    ($4.76 * 5 Kgal) =    $23.80
            Block 2    ($6.50 * 3 Kgal) =    $19.50
     Total Bill:                                     $59.30

Let's assume the same house uses 48,000 gallons (or 48 Kgal) of water during a given summer month.

    Base Charge:                                  $16.00
    Volume Charge
            Block 1    ($4.76 * 5 Kgal) =     $23.80
            Block 2    ($6.50 * 40 Kgal) =  $260.00
            Block 3    ($7.79 * 3 Kgal) =     $10.79
     Total Bill:                                    $310.59


For examples of how to calculate a commercial water bill;

How to Calculate a Commercial Water Bill

To calculate a monthly commercial bill, you must know the size of the meter (determines base rate) and the monthly water consumption.

Monthly consumption is determined by using a water meter.  Each business has a separate meter and each meter is read monthly by LP&L.

Some examples...

Let's assume a particular business with a 1.0-inch meter and an AWC of 12,000 gallons (or 12 Kgal) uses 26,000 gallons (or 26 Kgal) of water during a given summer month.

     Base Charge:                               $26.71
     Volume Charge
            Block 1    ($4.76 * 12 Kgal) =  $57.12
            Block 2    ($6.50 * 6 Kgal) =    $39.00
            Block 3    ($7.79 * 8 Kgal) =    $62.32
     Total Bill:                                   $185.15

Let's assume a particular business with a 4.0-inch meter and an AWC of 305,000 gallons (or 305 Kgal) uses 428,000 gallons (or 428 Kgal) of water during a given spring month.

    Base Charge:                                        $266.58
    Volume Charge
            Block 1    ($4.76 * 305 Kgal) =     $1,451.80
            Block 2    ($6.50 * 123 Kgal) =        $799.50
    Total Bill:                                          $2,517.88


Sewer Charges Calculation
 

All customers receiving sewer service from the City of Lubbock shall be billed at the following monthly base and volume rates.  Rates effective as of 12-1-2015.   (Ordinance Section 22.04.041)

Note: Sprinkler meters are not charged for sewer service.


Sewer Base Charges

Meter Size  Charge
No Meter  $60.57 
 3/4 inch  $16.00
 1 inch  $19.49
 1.5 inch  $28.18
 2 inch  $38.64
 3 inch  $63.07
4 inch   $97.92
6 inch   $185.07
 8 inch $289.64 
 10 inch  $411.67



Residential sewer customers must know their History Based Consumption (HBC) in order to calculate their sewer bill.  The HBC is the average amount of water that a residential customer uses between November and February. This value will differ between customers. 

A residential customer’s HBC will be used year-round as the volume of wastewater produced.  Therefore, a residential customer will have the same sewer charge for 12-months.  HBC values are updated every March.

Volume Charges

 Customer
Classification
Volume
Determination 
Charge per 1,000
gallons 
 Residential HBC   $2.67
 Commercial* Monthly Water Usage  $2.67
Schools  Monthly Water Usage   $2.67
* A surcharge is placed on commercial customers producing wastewater with a BOD and/or TSS higher than 250 mg/L.  See Industrial Waste Monitoring Program (IWMP) webpage for more information. 


For examples of how to calculate a residential sewer bill:

How to Calculate a Residential Sewer Bill

To calculate a monthly residential sewer bill, you must know the size of the water meter (determines base rate) and the HBC (determines volume rate).

Some examples...
Let's assume a particular residence has a 3/4-inch meter and an HBC of 3,000 gallons (or 3 Kgal).

Base Charge                                   $16.00
Volume Charge    ($2.67 * 3 Kgal) =    $8.01
Total Bill                                         $24.01

Let's assume a particular residence has a 1-inch meter and an HBC of 7,000 gallons (or 7 Kgal).

Base Charge                                   $19.49
Volume Charge    ($2.67 * 7 Kgal) =  $18.69
Total Bill                                         $38.18

For examples of how to calculate a commercial sewer bill:

How to Calculate a Commercial Sewer Bill

To calculate a monthly commercial sewer bill, you must know the size of the water meter (determines base rate) and the HBC (determines volume rate).

Some examples...
Let's assume a particular business has a 3-inch meter and used 34,000 gallons (or 34 Kgal) of water during the month in question.

Base Charge                                     $63.07
Volume Charge    ($2.67 * 34 Kgal) =   $90.78
Total Bill                                         $153.85

Let's assume a particular business has a 6-inch meter and used 1,100,000 gallons (or 1,100 Kgal) of water during the month in question.

Base Charge                                      $185.07
Volume Charge    ($2.67 * 7 Kgal) =  $2,937.00
Total Bill                                        $3,122.07



Bill Calculation


To ensure that our customers are charged fairly, the City of Lubbock uses meters to measure water consumption. We routinely replace meters every 10 years to ensure their accuracy. Your meter is read monthly by a trained meter reader who uses a handheld computer. Our meters are read accurately, resulting in City of Lubbock's 99% meter reading accuracy rate. Even though we strive for perfection, on rare occasions a meter will be misread. If you ever have a question about your meter reading or your water bill, please call us at (806) 775-2509. We'll be happy to check it out for you. 

Sewer Use is Averaged 

Because it is not cost effective to meter residential sewer use, the City of Lubbock averages it. The City of Lubbock uses the average of your winter months (November, December, January and February) usage to determine your average sewer usage. This is thought to be the best time to average because customers water their lawns less in the winter. However, if a customer's current month's actual water use is less than the winter months' average, the customer's sewer bill is based on the actual water use.