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What cookies are
Cookies are small files that a website stores in your browser so that it can recognise your device on later visits. Similar technologies, such as the browser’s local storage, are treated here in the same way.
Which cookies this website uses, what for, and how to accept or refuse each type.
Last updated: 1 October 2026
Cookies are small files that a website stores in your browser so that it can recognise your device on later visits. Similar technologies, such as the browser’s local storage, are treated here in the same way.
Without asking, we only store what is strictly necessary for the website to work. Everything else depends on your choice:
| Name | Provider | Purpose | Duration | Type |
|---|---|---|---|---|
| hs-consentimento-cookies | Hidrostation | Stores your cookie choice and the date you made it (browser local storage). | 12 months | Necessary |
| _ga | Google Analytics | Distinguishes visitors, using a random identifier, for usage statistics. | 2 years | Statistics — only with consent |
| _ga_C7EYQWCR87 | Google Analytics | Keeps the session state for usage statistics. | 2 years | Statistics — only with consent |
| _gcl_au | Google Ads | Links the visit to a Hidrostation ad, to measure whether that ad led to a contact request (conversion). | 90 days | Advertising — only with consent |
| _gcl_aw | Google Ads | Stores the ad click identifier (gclid) when you reach the website through an ad, for the same measurement. | 90 days | Advertising — only with consent |
| hs-origem-visita | Hidrostation | Stores the ad click identifier and the campaign parameters (UTM) during the visit, so they are included in any contact request you send (browser session storage). | Until you close the tab | Advertising — only with consent |
Third-party content. HidroTV videos (YouTube, in privacy-enhanced mode) and the map on the contact page (Google Maps) only load when you click to view them. From that moment on, YouTube and Google may set their own cookies, governed by Google’s privacy policy.
On your first visit, the website asks whether you accept statistics and advertising cookies. You can accept, refuse or adjust your choice for each type — refusing is as easy as accepting, and the website works in exactly the same way.
You can change your mind at any time using the “Cookies” link in the footer. If you withdraw your consent, the corresponding cookies (Google Analytics or Google Ads) are deleted. Your choice is stored for 12 months; after that, we ask again.
You can also block or delete cookies in your browser settings, or install the Google Analytics opt-out browser add-on.
To find out how we process the data collected, see the privacy policy. For any questions, write to hidrostation@hidrostation.pt.