Excessive Water Bill: User Cannot Challenge the Delegation Agreement After the Time Limit for Appeal

Imagine: you receive your water bill in Audincourt and notice a 30% increase compared to the previous year. You inquire and discover that the inter-municipal syndicate has signed a new delegation agreement with a private company, increasing the tariffs. But what can you do as a user? This decision of the Court of Cassation of 6 February 2001 (No. 99-11.996) answers this crucial question for thousands of owners and tenants.

The question every owner asks: when my water bill increases, can I challenge the agreement that binds the syndicate to the delegate? The Court of Cassation says no, if the time limit for appeal against that agreement has expired. In short, the user cannot rely on the defects of the agreement itself, but only on the tariff clauses applied to him.

What few people know is that this subtle distinction can close the door to a remedy if you wait too long. But rest assured: there are ways to act. In this article, I explain everything, with concrete examples in Besançon and Audincourt.

The facts: a story like any other

Mr. Dupont, owner of a house in Audincourt, receives a water bill from the company SDEI, delegate of the public drinking water service for the inter-municipal syndicate. The bill has increased by 20% following the application of Article 32 of the delegation agreement, which changed the tariffs. Mr. Dupont challenges this increase before the Commercial Court of Lyon, arguing that the delegation agreement itself is illegal.

SDEI, on its side, seizes the summary judge of the Commercial Court of Lyon to request payment of the sums due. Mr. Dupont retorts that the agreement is tainted by defects, notably a lack of advertising and competitive tendering. But the Court of Appeal of Lyon, in a judgment of 18 December 1998, rejects his arguments: the user, a third party to the agreement, cannot invoke its illegality after the expiry of the time limit for judicial review.

Mr. Dupont appeals to the Court of Cassation. The Court of Cassation, in its decision of 6 February 2001, upholds the judgment of the Court of Appeal: the user can only plead the illegality of the tariff clauses themselves, not the defects of the agreement. The judges refer the parties back to the Court of Appeal of Lyon to rule on the merits.

The reasoning of the court — dissected

The Court of Cassation relies on a fundamental principle of public law: the user of a public service is a third party to the delegation agreement. In law, a third party cannot challenge a contract to which he is not a party, except in very limited exceptions. Here, Article 32 of the delegation agreement provided for a tariff increase, and Mr. Dupont wanted to annul the entire agreement for procedural defects.

But the Court recalls that the time limit for judicial review against the agreement (generally two months from its publication) has expired. The user can therefore no longer invoke the illegality of the agreement itself. However, he can challenge the tariff clauses if they are illegal (for example, if they violate the principle of equality of users).

In other words, the Court makes a subtle distinction: the contract itself has become intangible, but its specific provisions that charge you can be attacked. This is a confirmation of previous case law (notably CE, 1996, Municipality of Saint-Maurice).

Note, however, that this decision only concerns users who are third parties to the agreement. If you were a signatory (for example, the syndicate itself), the rules would be different.

What this means for you — concretely

For the owner-landlord: You rent an apartment in Besançon and the tenant complains of an excessive water bill. You cannot challenge the delegation agreement if it dates back more than two months. However, you can check whether the tariff applied corresponds to the published tariff. If not, you can demand a refund.

For the tenant: You pay your water bill directly. If it increases sharply, ask the syndicate for the official tariff grid. Compare it with your bill. If the delegate has applied a non-compliant tariff, you can bring an action before the summary judge for an interim measure.

For the co-owner: The co-ownership has a water contract with the delegate. If the co-ownership's bill increases, the syndic must verify the legality of the tariff clause. But caution: the agreement itself can no longer be challenged after two months.

Numerical example: In Besançon, a household paid €300 per year for water. After a 25% increase, the bill goes to €375. If the increase is based on an illegal clause (e.g., a discriminatory surcharge), the user can claim the difference. But if the clause is legal, he must pay.

If you are in this situation, you must act quickly: the time limit to challenge a tariff clause is generally 5 years from its application, but it is better to consult a lawyer at the first signs.

Four tips to avoid this type of dispute

• Keep your water bills and tariff grids: Keep at least 5 years of bills. Compare them each year. If an increase seems unjustified, ask the delegate in writing for the tariff basis.
• Check the publication of the agreement: The syndicate must publish the delegation agreement in the collection of administrative acts. Consult it at the town hall or online. If the agreement is not published, the time limit for appeal does not run, and you can challenge it for longer.
• Act quickly: As soon as you learn of an increase, do not delay. The time limit to challenge the agreement is two months. For tariff clauses, act within 5 years.
• Consult a specialised lawyer: A property lawyer can analyse your situation and determine whether you can challenge the tariff clause or the agreement. A quick consultation can save you months of proceedings.

Further reading: related case law and developments

This decision follows a consistent line: the user cannot challenge the delegation agreement itself (CE, 1996, Municipality of Saint-Maurice). But it has been nuanced subsequently. For example, the Council of State has held that the user can invoke the illegality of the agreement if it has not been published (CE, 2003, Association of Water Users of the Roanne Region).

Note, however, that the Court of Cassation remains strict on the distinction between tariff clauses and defects of the agreement. The administrative courts, for their part, are sometimes more flexible. undefined, I have encountered cases where users have succeeded by proving that the tariff clause was discriminatory.

The current trend is to protect the user while respecting the legal certainty of contracts. Thus, if you can demonstrate that the tariff is disproportionate or discriminatory, you have a chance. But do not count on the annulment of the agreement itself.

In practice: what to do

FAQ:

• Can I challenge an increase in my water bill if the agreement was signed 3 years ago? Yes, if the increase is due to an illegal tariff clause (e.g., not in accordance with the contract). But you cannot challenge the agreement itself.
• What if I discover that the agreement has not been published? You can then challenge the agreement at any time, as the time limit for appeal has not started to run.
• What is the time limit to act against a tariff clause? 5 years from its application. But act as soon as possible to avoid complications.
• Do I have to pay the bill during the dispute? In principle yes, but you can ask the summary judge to suspend payment if you demonstrate serious prejudice.

Checklist for action:

1. Gather your water bills and the tariff grid.
2. Check the syndicate's website to verify the publication of the agreement.
3. Compare the tariffs applied with those in the agreement.
4. If there is an anomaly, send a registered letter to the delegate asking for explanations.
5. Consult a lawyer to assess your chances of success.

Are you in a similar situation? A first 30-minute consultation with Maître Zakine (€45) can save you months of proceedings — and often much more. Book an appointment →