High Water Bills for Colorado Renters: How to Check Your Account

A water bill that suddenly jumps can be hard to diagnose when you rent: the account may belong to your landlord, the meter may serve more than one unit, or the charge may bundle water with sewer service. This guide explains how to identify the billing setup, check the numbers, look for common causes, and raise a clear question with the right party.

Start by finding out who bills you

Before investigating a high charge, identify who issued it and what you agreed to pay. A bill from a water provider is different from a charge passed through by a landlord, property manager, or billing company. The distinction affects which records you can request and who can explain the amount.

Check the bill, lease, move-in documents, and any billing notices for:

• The name of the water provider or billing company
• The service address and billing period
• The name of the account holder
• Whether the charge is for water, sewer, or both
• Whether the amount is based on a meter, a submeter, or an allocation formula
• Any fixed service charges, fees, adjustments, or past-due amounts
• Instructions for questions, payments, and disputes

If you do not know which provider serves the address, a bill may identify it. You can also use Checking Your Monthly Water Bill to Identify Your Public Provider or Who Supplies Your Tap Water? How to Check Any Colorado Address. A public water provider supplies water to a service area, but it may not send a separate bill to every renter. In some buildings, the property owner holds the main account and then charges residents through a separate billing arrangement.

Separate the account holder from the person paying

The person who receives the provider’s bill is not always the person responsible for the cost under a lease. For example, a landlord may receive one bill for a building and allocate some of the cost to tenants. In another property, a renter may open an account directly with the provider and receive a bill in their own name.

Look at your lease and any written utility addendum to see which arrangement applies. Note whether it says the tenant pays a provider directly, reimburses the landlord, or pays a calculated share. Also check what the lease says about sewer charges, common-area water, irrigation, and billing or administrative charges.

Do not assume that a line labeled “water” is a direct utility charge. It could be a landlord’s allocation, a submeter reading, or part of a broader utility statement. If the description is unclear, ask the billing party to explain what the line includes and how it was calculated.

Know what the provider may be able to explain

If the account is in your name, contact the water provider through its official website or the contact details on your bill. Ask about the meter readings, billing dates, usage history, and whether a reading was actual or estimated.

If the account belongs to the property owner, the provider may not be able to discuss private account details with you. The landlord or account holder may need to request the information or authorize the provider to share it. You can still ask the landlord or billing company to provide the relevant bill pages and readings.

Colorado public water systems operate under state and federal drinking-water requirements, but those rules do not automatically answer how a landlord calculates a tenant’s share of a building’s water bill. For a general explanation of how public supplies are regulated, see Colorado Public Water Systems: How Community Supplies Are Regulated. For a high bill in an apartment, Unusually High Colorado Water Bill? Steps for Apartment Tenants offers a related checklist.

Read the bill line by line before comparing it

A high total does not always mean the unit used an unusual amount of water. The bill may cover a longer period, combine more than one service, include a catch-up adjustment, or reflect a different reading method. Start by comparing the bill’s details, not just its final amount.

Bill detail	What to check	Why it matters
Service dates	Compare the start and end dates with the prior bill	A longer billing period can raise the total even if daily use is similar
Meter readings	Check the beginning and ending readings and whether they are actual or estimated	An estimate followed by a later actual reading can create an adjustment
Usage units	Identify whether usage is shown in gallons, cubic feet, or another unit	The same volume can look different when reported in different units
Water charge	Look for usage-based charges and fixed service charges	The total may include costs that do not change with use
Sewer charge	Check whether sewer is billed separately or tied to water use	A water increase can also raise a sewer-related amount
Adjustments and credits	Look for corrections, leak credits, or prior-period balances	A balance may not represent only the current billing cycle
Account or billing fees	Identify administrative, service, or late charges	These are separate from the amount of water used

Compare billing periods fairly

A bill covering more days will often be higher than one covering fewer days. To make a useful comparison, divide the reported usage by the number of days in each billing period. Compare that daily average across several bills, if available.

For example, a total that looks much larger may reflect a longer period rather than a sudden change in daily consumption. Conversely, a normal-looking total may conceal a sharp increase if the billing period was short. The goal is to compare like with like: similar dates, similar number of occupants, and the same units of measurement.

Be aware that providers do not all read meters on the same schedule. Your bill may not align with the calendar month, move-in date, or the day you received it. Use the actual service dates shown on the bill.

Check for estimated readings and adjustments

A provider may estimate usage when it cannot obtain a reading. The next actual reading can then include water used since the last confirmed reading. That can make one statement unusually high even if the meter is now accurate.

Look for terms such as “estimated,” “adjustment,” “previous balance,” or “corrected reading.” If you see them, ask the account holder or provider:

• Which readings were estimated and which were actual?
• What dates do the readings cover?
• Was usage carried forward from an earlier billing period?
• Was a correction applied to a prior bill?
• Can the provider confirm the meter reading or explain the adjustment?

Keep a copy of the response. If the bill comes through a landlord or third-party billing company, request the underlying provider statement or a breakdown that shows how the usage and charges were derived.

Check whether sewer or other services are included

Water and sewer charges may appear on one statement, even when they are separate services. Some billing arrangements also include other property charges. A jump in the total may be caused by a change in one line item rather than by additional water use.

Ask whether the sewer charge is based on current water use, a separate meter, a fixed amount, or another method. Do not assume that every line on a combined bill is calculated in the same way. Request an itemized explanation of any unfamiliar charge.

Identify the building’s billing arrangement

A renter’s bill can be based on several different setups. The property may have one meter for the whole building, separate submeters for units, or a formula that divides the main bill among residents. Some buildings have more than one arrangement, such as individual apartment submeters plus a shared meter for outdoor use.

Billing setup	How it usually works	What to ask for
Direct utility account	The provider bills the renter for a meter assigned to the unit or property	Meter readings, service dates, usage units, and whether the reading was actual
Building master meter	One provider meter measures water for multiple units or the whole property	The provider bill, the allocation method, and which shared uses are included
Apartment submeter	A meter within the property tracks usage for an individual unit	Beginning and ending submeter readings, meter identification, and reading dates
Shared allocation	A formula divides a building bill among residents	The formula, occupancy or unit information used, and treatment of common-area use
Bundled utility charge	Water and other services appear together in a landlord or billing-company statement	An itemized breakdown showing each service and any separate fees

These descriptions explain common arrangements; they do not establish what a particular landlord may charge. Your lease, written disclosures, local requirements, and the details of the property matter. If the paperwork does not explain the method, ask for it in writing before trying to interpret the total.

Ask whether your unit has its own meter

A building’s main water meter may serve several apartments. A smaller meter, or submeter, may be installed to track one unit’s use. Ask the landlord or manager whether your charge is based on a meter assigned only to your apartment.

If it is, request the readings for the start and end of the period and ask how the meter is identified. If possible, ask to see the meter or a record showing its reading. Do not enter locked utility rooms, open meter boxes, or disturb equipment. The property manager can arrange access or provide the information.

If the charge is not based on a unit meter, find out what is being divided and how. A building-wide bill may include water used in hallways, laundry rooms, landscaping, pools, or maintenance areas. Ask whether those shared uses are included in the tenant calculation and whether every unit is treated the same way.

Understand allocation formulas

A landlord or billing company may divide a master-meter bill using a formula. Depending on the arrangement, the formula might consider unit size, occupancy, the number of units, or another stated factor. The important point is not to guess which formula was used: request the actual method and the figures used for your bill.

A helpful written request can ask for:

• The total provider bill for the same period
• The building’s total metered usage
• The portion attributed to your unit
• The formula used to calculate that portion
• Any shared or common-area usage included
• Any separate billing or administrative charges
• Whether vacant units or nonresidential spaces are treated differently

A charge based on a formula may not match a household’s direct meter reading. For instance, a tenant might use less water than a neighboring unit but still pay a share of common-area use. Whether a particular method is allowed depends on the relevant lease and rules. If the explanation conflicts with your documents or you cannot get a clear calculation, consider getting local tenant or legal guidance.

Check for changes in the arrangement

A bill can change when the property changes how it measures or allocates water. A new submeter, a billing-company change, a revised occupancy count, or a different allocation method may affect the amount even if your routine has not changed.

Look for notices explaining a change. Compare the new statement with earlier ones, and ask when the new method began. If a billing company is involved, confirm whether it is calculating the charge from meter data, a property-wide bill, or information supplied by management.

Compare usage and readings, not just the amount due

Once you know how the charge is calculated, look at the underlying usage. A comparison of meter readings can help distinguish a real increase from a billing or allocation issue. If you rent, you may need the landlord or account holder to provide readings from equipment you cannot access.

Compare the same unit and time period

Use the same unit of measurement when comparing bills. If one statement reports cubic feet and another reports gallons, ask the billing party to explain the conversion or provide usage in a consistent unit. Do not compare a building’s total usage with the use assigned to one apartment.

A useful comparison includes:

1. The service start and end dates
2. The number of days in the period
3. Beginning and ending readings
4. Reported usage and its unit
5. The number of people living in the unit during that period
6. Any changes in routine or equipment

If the building uses an allocation formula, record both the building-wide usage and your allocated share, if provided. That can help show whether the increase came from the property’s total use, a change in the formula, or a change in your portion.

Consider changes in the household

Water use can rise without a leak. Review whether anything changed during the billing period, such as:

• More people staying in the unit
• A move-in, move-out, or extended guest visit
• More laundry or frequent use of a shared washer
• Increased bathing, cooking, or cleaning
• A change in work or school schedules that keeps people home
• A dripping faucet, running toilet, or appliance issue
• Outdoor watering billed to the unit
• A move from a short billing period to a longer one

These are possible clues, not proof. A large unexplained increase deserves follow-up, particularly if the usage change is sudden and persists across bills.

Take a meter reading only if it is accessible and safe

If your unit has an accessible meter or submeter, ask management how to read it and confirm that it belongs to your unit. Record the reading and date. Do not open sealed equipment or access restricted utility areas.

For a simple check, turn off faucets and appliances that use water, including dishwashers, washing machines, and ice makers. If the meter can be safely viewed without touching it, note whether the reading changes over a reasonable observation period. A moving meter can suggest ongoing use, but it does not identify the cause. Water may be serving another fixture or part of the property.

Do not use a main shutoff valve or utility meter as an experiment unless the property manager or provider instructs you to. Shutting off water can affect other units or building systems. If the meter is shared, its movement cannot tell you whether the water is coming from your apartment or another part of the property.

Keep a simple comparison record

A short record is more useful than relying on memory. Keep copies or photographs of bills, readings, and written explanations. A table can help:

Billing period	Days covered	Reading type	Reported usage	Charge change	Notes
Earlier period	Record from bill	Actual or estimated	Record from bill	Compare with prior bill	Household or property changes
High-bill period	Record from bill	Actual or estimated	Record from bill	Identify affected line item	Leak, guest, repair, or unknown
Following period	Record from bill	Actual or estimated	Record from bill	Check whether increase continued	Note any action taken

Use the figures as printed rather than rounding them. If the bill does not show readings or days covered, ask the billing party for those details.

Look for leaks and other causes inside the property

A leak can increase usage without an obvious puddle. Toilets are a common place to start because water can quietly move from the tank into the bowl. But a building-wide bill may also rise because of a leak in a shared area, an irrigation system, or plumbing outside the apartment.

Check fixtures in your unit

Look and listen for:

• A toilet that refills when no one has used it
• Water trickling into a toilet bowl
• A faucet that continues to drip
• Damp cabinets or flooring around sinks
• Water stains, bubbling paint, or soft drywall
• A washing machine hose or connection that is wet
• A dishwasher or refrigerator line with moisture nearby
• A water heater or nearby pipe that is leaking

For a basic toilet check, add a few drops of food coloring to the tank without flushing. Wait and check whether color appears in the bowl. If it does, water may be passing from the tank into the bowl. Follow up with management rather than attempting a repair if plumbing changes are not yours to make.

If you see active leaking, water near electrical equipment, or damage spreading through a wall or ceiling, notify property management promptly using its emergency reporting process. Avoid touching wet electrical equipment or entering a flooded utility area.

Do not overlook shared property systems

If your personal routine has not changed and your apartment fixtures appear sound, the source may be elsewhere. Possible causes include:

• A leaking toilet or faucet in another unit
• A leak in a laundry room or common bathroom
• Irrigation running longer than intended
• A damaged underground line
• A pool, fountain, or other shared water feature
• A plumbing repair that left a fixture running
• A meter or billing problem

Tenants generally cannot inspect every part of a building’s plumbing. Ask management to check common areas and have qualified personnel inspect any equipment that is not accessible to residents. For a fuller property-focused troubleshooting process, see How Colorado Tenants Can Investigate Property Leaks and Water Spikes.

Ask whether the provider has issued a leak notice

Some water providers may alert an account holder when usage appears continuous or unusually high. Whether such alerts are available, and who receives them, depends on the provider and account setup. A renter may not receive a notification if the property owner controls the account.

Ask the landlord or account holder whether the provider sent a high-use alert or leak notice. If the unit has its own account, check whether the provider offers usage alerts and what information it needs to set them up. How Colorado Community Water Providers Notify Renters of Water Leaks explains why notices may not always reach the tenant directly.

A notice is a prompt to investigate, not a diagnosis. It may reflect a legitimate increase in use, a leak, or an unusual meter pattern. Confirm the meter or bill details before concluding what happened.

Raise the issue with records and a specific request

A clear, documented question is more likely to get a useful answer than a general complaint that the bill seems too high. Contact the party responsible for the charge: the provider if the account is yours, or the landlord, property manager, or billing company if the charge is passed through.

Build a small evidence file

Before you contact anyone, collect:

• The high bill and at least one earlier bill for comparison
• Your lease or utility addendum
• The dates covered by each bill
• Meter or submeter readings, if available
• Any notice about a billing or meter change
• Notes about household changes or possible leaks
• Photos of visible leaks or water damage
• Copies of prior requests and responses

Keep the original documents and send copies when needed. If the charge is on an online portal, save a copy or screenshot showing the itemized breakdown and date.

Ask focused questions

You can adapt this sample message:

I am reviewing the water charge for billing period. It is higher than the earlier period, and I would like to understand the calculation. Please provide the service dates, beginning and ending readings, whether the readings were actual or estimated, and the usage units. If this is a shared bill, please explain the allocation method, the total property usage, any common-area use included, and any separate fees. Please also let me know whether there was a leak notice, meter change, or billing adjustment.

If you believe there is an active leak, say so clearly and include where you observed it. Ask when management will inspect or arrange a repair. Keep a record of when you reported it and how you did so.

If the account is directly in your name

Contact the provider through its official website or the contact information on the statement. Ask it to verify the meter reading, billing dates, units, and any estimates or corrections. If you suspect a meter problem, ask what review or test process the provider offers and whether there are any requirements or costs. Do not assume a specific process or fee; confirm current details directly with the provider.

If the provider confirms that the reading is accurate, continue investigating household or property causes. If it identifies an error, ask how the account will be corrected and whether an updated bill will be issued. Keep notes of the date, the representative or department you contacted, and any case or reference number the provider supplies.

If the charge comes through the landlord or a billing company

Ask for the provider statement and the calculation used for your share. If the landlord says the amount is based on a submeter, request its readings and the dates they were taken. If it is an allocation, request the formula and the inputs used for your unit.

Compare the explanation with your lease and any written utility terms. If the calculation is incomplete, ask for the missing details rather than guessing. If the information conflicts with your lease or you believe a charge is improper, seek guidance from a qualified tenant resource or legal professional in your area. Local rules and the terms of your agreement can matter.

Keep payment decisions separate from the investigation

A dispute does not automatically pause a payment deadline or change lease obligations. Do not withhold rent or a utility payment based only on an unanswered question. Review the bill and lease, ask for written clarification, and seek qualified local advice before making a decision that could affect your tenancy.

If you cannot pay the amount by its due date, contact the billing party promptly and ask about its process for handling a disputed charge or payment arrangement. Get any agreement in writing. Do not rely only on a verbal assurance that a charge will be corrected.

Frequently Asked Questions

Can a Colorado renter ask the water provider for the bill?

You can ask, but the provider may be limited in what it can share if the account belongs to the property owner. Ask the landlord or account holder to request the bill or authorize the provider to discuss the account with you. If the account is in your name, contact the provider directly.

Why is my water bill high when my use seems normal?

Check the number of days in the billing period, whether the reading was estimated, whether sewer is included, and whether the charge comes from a shared meter or allocation formula. A leak or a change in common-area use can also raise a building bill.

What if my apartment does not have its own water meter?

Ask whether the charge is based on a master-meter bill and request the allocation method and figures used. Your share may include common-area use, depending on the arrangement. Compare the explanation with your lease and seek local tenant guidance if it is unclear or appears inconsistent with your written terms.

Should I shut off the water to test for a leak?

Do not shut off a building or shared water supply without permission. If a unit meter is accessible, ask management or the provider how to check it safely. You can also report visible leaks and request an inspection.

Who should I contact first about a sudden increase?

Start with whoever issued the charge. If the provider bills you directly, ask it to verify the reading and billing details. If the landlord or a billing company charges you, request the provider statement, meter data, and calculation behind your share.

Disclaimer

This article is for general informational purposes only and does not constitute professional advice. Laws, prices and regulations vary by location and change over time. Consult a qualified professional for guidance on your specific situation. Colorado Water Guide is not a government agency or water utility and is not affiliated with any public water system.